planned to do or buy原来不打算做而又不得不做的事（要买的东西）
Its useful to carry extra cash for taxis, tips, and other incidentals.有必要额外带些现金用来坐出租车、付小费和其他临时开支。
46. empty-handed: adj. without getting what you hoped or expected to get一无所获的，两手空空的
I spent all morning looking for a suitable present, but came home empty-handed.我整个上午都在寻找一件合适的礼物，但最后还是空手回家了。
Idioms and Expressions
1. delight in: v (not in passive) to enjoy something very much, especially sth unpleasant以…为乐，喜欢…（尤指不好的事）
2. for the purpose of: used to say that someone or something will be considered in a particular way in a discussion, document etc. 出于…目的，为了… Ironically, it is designed for the purpose of being thrown away.
3. Drain of: to use too much of sth that there is not enough left消耗过多，耗尽 They drained of their wealth but filled with pride in their awesome capacity for consumption.
4. Buy up: to quickly buy as much as you can of sth such as land, tickets, food etc（迅速地）囤积，大量买下（土地，票券，食品等） Much of the land has been bought up by property developers. 5. Yearn for: to have a strong desire for sth向往，渴望 e.g: Hannah yearned for a child.
6. go over: to look at something or think about something carefully仔细审查（考虑） I had gone over and over again what happened in my mind. 我对发生的事进行了反复思考。