重点讲解：
1. go up （价格、数量或水平）上涨，上升；
If costs go up, there will be a pro rata increase in prices.
如果成本增加，价格就会相应上涨b1^NllHJQ)Kp。
2. break down （讨论、关系或系统）失败，破裂，失灵；
Work came to a halt when the machine broke down.
机器一坏，工作便停了下来;J|1W]k)2qnMI#4。
3. fend for oneself 照料自己；自谋生计；
His parents agreed to pay the rent for his apartment but otherwise left him to fend for himself.
他的父母同意替他付房租，其他的则让他自己解决LmJM9c*tUw1J|p。
4. in reality 事实上；实际上；
He came across as streetwise, but in reality he was not.
他给人的印象是很适应都市生活，但实际上并非如此-(2-K_eA-F。