1.scrambling to do sth. 慌忙
I was scrambling to find my homework before school this morning.
今天早上上学前，我着急忙慌地到处找我作业)u1#HYlQYH(。

2.sink into sth. 陷入
When she first lost her sight, he watched her sink into despair and he became determined to use every means possible to help his wife.
在苏珊失明后那头一段时间，他眼睁睁地看着妻子陷入绝望，于是，他打定主意要用尽一切办法来帮助她S6QW]q8oF]I.@HN。

3.let up 放松；松懈；
In the race she was so far ahead that she could afford to let up a bit.
比赛环节她早已大幅领先其他选手，因此她完全可以放松点NZcCadmR]I。

4.carry out 实施
France is at the forefront of the field, but surgery like this has never been carried out in the United States.
法国在该领域处于世界前端，但是在美国，像这样的手术还从来没有实施过Q6ccYi@B09IyO。