1.start to 开始

When and why did things start to change?
那么这种情况是什么时候开始改变的？

It was the best start to august trading since 1934.
这是1934年以来8月份最好的股市开局。

2.at the end of 在…结尾，在…末端

Reparation normally comes at the end of a conflict.
赔偿通常是在一场冲突结束后开始的。

Participants kept their winnings at the end of the experiment.
参与者可以保留他们的奖金在实验结束后。

3.promise to 承诺

Last year he campaigned for governor with the promise to shake up state government.
去年他凭借要彻底改变州政府现状的承诺参选纽约州州长。

France has postponed its promise to balance its budget, from 2010 to 2012.
法国承诺2010年平衡预算，但现在已经推迟到2012年。

4.drop to 下降到，跌到

The usda said that domestic stocks-to-demand would drop to the lowest point in nearly half a century.
美国农业部表示，美国大豆的储量需求比将跌至近半个世纪以来最低水平。

The corn harvest is expected to drop to the lowest level since 1995.
预计玉米收成会跌到1995年以来的最低水平。