在好几个星期中，所有的紧急援助行动都由志愿卫生工作者在无外援的情况下开展。

For weeks, all of the urgent assistance operations were carried out unaided by volunteer health workers.

youdao

在好几个星期中，所有的紧急援助行动都由志愿卫生工作者在无外援的情况下开展。

For weeks, all of the urgent assistance operations were carried out unaided by volunteer health workers.

youdao