For some time after his dangerous operation, Keren's life hang by a thread.

在手术后的一段时间，凯伦的生命都处于垂危之中。

The fire was approaching people's houses. people's lives and properties were hang by a thread.

大火向民房逼近，人民的生命财产危在旦夕。

Sew a small loop of thread to the back of the angel to hang her by.

在小天使的后备缝上根线，头上系成圈，挂着方便，也好让天使真的飞起来。