重點講解：
1. keep track of
跟上…的進展；掌握…的最新消息；
eg. With eleven thousand employees, it's very difficult to keep track of them all...
對于一支 1。1 萬人的員工隊伍，很難及時了解到所有有人的動態。
eg. It's hard to keep track of time in here.
在這里很容易忘了時間。
2. pull a stunt
冒險；逞能；干傻事；
eg. The days when they needed to pull publicity stunts to get noticed are long gone.
他們靠作秀出名的日子早已過去。
eg. Don't ever pull a stunt like that again.
別再耍那樣笨拙的把戲了。
3. take one's word for it
相信…的話；…說的是真話；
eg. You'll buy nothing but trouble if you buy that house, take my word for it.
你要是買那棟房子只會買來麻煩，我說的都是真的。
eg. Fool that I was, I took his word for it.
我真傻，竟然相信他的話。