Somebody has to put his hand into the machine and let it be wrenched off if the cogs are to mesh again.

总得有人把手伸进机器里去，把机器把手扳下来-若要叫齿轮重新啮合的话。

youdao

Somebody has to put his hand into the machine and let it be wrenched off if the cogs are to mesh again.

总得有人把手伸进机器里去，把机器把手扳下来-若要叫齿轮重新啮合的话。

youdao