1.bring down 下降，击落
Military historians may never know what brought down the jet.
军事史学家们可能永远也不会知道是什么击落了这架喷气式飞机。
2.run out of 用完
Fears that the world was about to run out of fuel proved groundless
事实证明对于世界燃料即将耗尽的担忧毫无根据。
3.put on 增加
I can eat what I want but I never put on weight.
我能想吃什么就吃什么，但是体重从来不增加。
4.at the beginning 开始
When she contacted me at the beginning of August to enlist support, Sharon and I sprang into action.
她8月初和我联系请求帮助时，我和沙伦便立即行动起来了。
5.willy-nilly 不管愿意不愿意
The government were dragged willy-nilly into the confrontation.
政府不管情愿不情愿，也被拖进了这场冲突。
