经济学人下载: 搜寻火星生命 (2)

1.on the basis of 根据
Statement should be made on the basis of fact.
说话要有根据。
2.on board 在船（火车、飞机）上
We went on board and saw these people packed shoulder to shoulder on the decks.
我们上了船，看见这些人在甲板上肩挨着肩挤在一起。
3.deflect 阻止
The government will not be deflected from its commitments.
政府决不会因任何阻碍而放弃承诺。
4.obscure 遮盖
We mustn't let these minor details obscure the main issue.
我们不能让枝节问题掩盖主要问题。