time-consuming adj. 浪费时间的。of a task that takes time and patience
alternative adj. 两者择一的。serving or used in place of another congested adj. 拥挤的；堵塞的。overfull as with blood reed
n. 芦苇。tall woody perennial（反复的 常年的） grasses with hollow
slender stems especially of the genera Arundo and Phragmites
aquatic adj. 水生的；水中的。relating to or consisting of or being in water purify v. (使）净化。remove impurities from, increase the concentration of, and separate through the process of distillation
oxygen n. 氧气。a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas
disruptive adj. 破坏性的；制造混乱的。characterized by unrest or disorder or insubordination sufficient
adj. 足够的；充分的。of a quantity that can fulfill a need or
requirement but without being abundant attentive simulate
adj. 注意的。(often followed by `to') giving care or attention v. 模拟；模仿。reproduce someone's behavior or looks
adj. 根本的；重要的。serving as an essential component
fundamental
refrigerator n. 冰箱。goods in which food can be stored at low temperatures yawn v. 打呵欠。an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom;
contagious adj. 传染性的。easily diffused or spread as from one person to another
eliminate adj. 除去；剔除。terminate, end, or take out
susceptible adj. 易受外界影响的；易受感染的。(often followed by `of' or `to') yielding readily to or capable of essential category
adj. 必要的；重要的。absolutely necessary; vitally necessary n. 种类；类别。a collection of things sharing a common attribute
interpersonal adj. 人与人之间的；人际关系的。occurring among or involving several people
critical n. 决定性的。urgently needed; absolutely necessary
monitor n. 监视器；监听员。someone who supervises (an examination) textile n. 纺织品。artifact made by weaving or felting or knitting or crocheting natural or synthetic fibers
spider n. 蜘蛛。predatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey elasticity
n. 弹力；弹性。the tendency of a body to return to its original
shape after it has been stretched or compressed replicate
vt. 复制；模拟。reproduce or make an exact copy of
memorize v. 记住；记录。commit to memory; learn by heart recite v. 背诵。repeat aloud from memory
photographic adj. 摄影的。relating to photography or obtained by using photography
atrophy n. 萎缩。a decrease in size of an organ caused by disease or disuse
vicious adj. 恶毒的；恶意的。(of persons or their actions) able or disposed to inflict pain or suffering
confine v. 限制；禁闭。place limits on (extent or access)
Promotion n. 促销。encouragement of the progress or growth or acceptance of something
mislead v. 误导；使产生错误印象。lead someone in the wrong direction or give someone wrong directions
talc n. 滑石粉。a fine grained mineral having a soft soapy feel and consisting of hydrated magnesium silicate; used in a variety of products including talcum powder
component n. 零部件；元件；组成部分。something determined in relation to something that includes it reluctant
adj. 不情愿的；勉强的。unwillingness to do something
recuperate v. （使）恢复；（使）复原。regain or make up for hinder v. 阻碍；打扰。be a hindrance or obstacle to; salinity nitrogen
n. 盐浓度；盐分。the relative proportion of salt in a solution n. 氮。a common nonmetallic element that is normally a colorless
odorless tasteless inert diatomic gas
distinctive adj. 独特的，有特色的。of a feature that helps to distinguish a person or thing
Eexpedition n. 远征；探险队。an organized group of people undertaking a journey for a particular purpose
arctic n. 北极圈；北极。the regions to the north of the Arctic Circle centered on the North Pole
sonar n. 声纳。a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
lactic acid n. 乳酸。a clear odorless hygroscopic syrupy carboxylic acid found in sour milk and in many fruits
expertise n. 专门知识；专门技术。skillfulness by virtue of possessing special knowledge
novice n. 新手。someone new to a field or activity
journeyman n. 熟练工人。a skilled worker who practices some trade or handicraft
apprentice n. 学徒；见习生。works for an expert to learn a trade primitive
adj. 原始的。little evolved from or characteristic of an earlier
ancestral type
aestivation n. 夏眠。(zoology) cessation or slowing of activity during the summer; especially slowing of metabolism in some animals during a hot or dry period （hibernation 冬眠）
plastic n. 塑料；塑料制品。generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives commodity n. 商品。articles of commerce
rubber n. 橡胶。an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products
supersede v. 取代；接替。take the place or move into the position of fiber
n. 纤维(物质)。any of several elongated, threadlike cells (especially a
muscle fiber or a nerve fiber)
tattoo n. 文身。a design on the skin made by tattooing pigment
n. 色素； 颜料。dry coloring material (especially a powder to be
mixed with a liquid to produce paint, etc.)
conscious adj. 神志清醒的；意识到的。knowing and perceiving; having awareness of surroundings and sensations and thoughts
dilettante n. 业余爱好者。an amateur who engages in an activity without serious intentions and who pretends to have knowledge hypothesize grounds
remarkable adj. 非凡的。unusual or striking immune
adj. 免疫的。relating to the condition of immunity
n. 宣传。information that is spread for the purpose of v. 假设；假定。to believe especially on uncertain or tentative
propaganda
promoting some cause
resemble v. 与…相似；像。 be similar or bear a likeness to photography
n. 摄影。the act of taking and printing photographs
aesthetic adj. 美学的；审美的。relating to or dealing with the subject of