This is their second effort to make contact with the men. Yesterday a microphone was lowered down to a separate hole, but that also turned up nothing.

这是他们第二次尝试和矿工联系，昨天一个迈克风放在另一个洞里，但也没有结果。

youdao

This is their second effort to make contact with the men. Yesterday a microphone was lowered down to a separate hole, but that also turned up nothing.

这是他们第二次尝试和矿工联系，昨天一个迈克风放在另一个洞里，但也没有结果。

youdao