1.in addition 另外;此外;加之
例句:In addition, he said, the drug's dosing schedule is only once per month.
此外,這種藥物的給藥方案只能是每月一次。
2.the absence of 缺乏...
例句:The absence of such a philosophy has been a great failing.
缺乏此類哲學一直是一個重大失敗。
3.track down 追捕到;查出;追蹤
例句:FBI is trying to track down the hacker.
FBI正在努力追蹤黑客。
4.watch over 監視
例句:It is not very effective to watch over our children shoulder to keep an eye on what they are doing in the computer.
當不在孩子身邊時,我們無法有效監視他們在電腦上干什么。