语法总结
while 引导时间从句
As/while the thieves were trying... 用过去进行时描写持续背景，主句动作插入其中。
相似句：
- While I was sleeping, someone called.
- While they were leaving, it began to rain.
such ... that ...
got such a fright that he dropped the bag 表示“吓得如此厉害以至于丢下包”。
相似句：
- It was such a shock that she cried.
- He had such a busy day that he slept early.