因为好几个小时以来这里都是一片寂静，这声音把她们吓了一跳。

It had been so still for hours and hours that it startled them.

youdao

因为好几个小时以来这里都是一片寂静，这声音把她们吓了一跳。

It had been so still for hours and hours that it startled them.

youdao