袖手旁观

look on indifferently; look on with folded arms; sit out; stand by

1. 他对需要做的各项工作并没有袖手旁观，而是精神抖擞地投入了工作。
   He did not stand about looking at all the job to be done; he waded straight in.
2. 只有一个人帮我们，其他人只是一声不响地袖手旁观。
   Only one man tried to help us, the rest just looked on in silence.
3. 在这种情况下，我们不会袖手旁观。
   In that case we will not look on with folded arms.

袖的英语翻译：

手的英语翻译：

旁观的英语翻译：