经济学人下载:一周要闻 《复联4》圆满收官 波音CEO保住职位 拜耳股价暴跌惹怒股东

The film flopped badly at the box office.
这部电影票房惨淡。 

2.think twice 再三考虑

I must think twice before I can promise.
在我答应之前，我必须重新考虑一下。

3.annual rate 年利率

The annual rate of inflation in Britain has risen to its highest level for eight years.
英国的年通货膨胀率已升至8年来的最高水平。

4.legal force 法律效力

Binding is the legal force to impose UN resolutions on the Member States.
约束力是指联合国决议对成员国具有法律效力。