270. What do you think of...? 你认为……怎么样?

What do you think of the relationship between China and America? 　你认为中美关系如何?

269. What do you say...? 你认为……怎么样?

What do you say we go for a drive one of these days when it clears up?

找一天天晴的时候我们开车出去兜兜风，你认为怎么样?

268. What do you mean by...? 你……是什么意思?

What do you mean by telling me a lie? 你跟我撒谎是什么意思?

267. What do you find the hardest in...? 你觉得……最大的困难是什么?

What do you find the hardest in learning English?　 你觉得学英语最大的困难是什么?

266. We should make every effort to...　 我们应该竭尽全力……。

We should make every effort to protect our valuable drinking water.

我们应该竭尽全力保护我们宝贵的淡水。

265. We must take action / measures to... 　我们必须采取行动／措施以……。

1) We must take action to keep up with new develop­ments. 我们必须采取行动跟上新的发展形势。

2) We must take measures to better the traffic.　 我们必须采取措施改善交通状况。

264. We must do something to... 我们必须采取行动以……。

We must do something to reduce the pollution.　 我们必须采取措施减少污染。

263. We hold the opinion that... 我们认为……。

We hold the opinion that miracles sometimes occur, but one has to work terribly hard for them.

我们认为奇迹有时候是会发生的，但是你得为之拼搏。

262. To tell (you) the truth,... …说实话，……。

To tell you the truth, I used to make a lot of trouble when I was young.不瞒你说，我小时候老是闯祸。

261. To sum up... 总之，……。总而言之，……。

To sum up, life in the future will certainly be very dif­ferent from that of today.

总之，未来的生活肯定会和当前的很不一样。