例句：
They set the machinery in motion.
他们将机器开动起来。
What skills are needed to operate this machinery?
操作这种机器需要什么技能？
The contract clearly specifies who can operate the machinery.
合同明确规定谁可以操作机器。
There is no machinery for resolving disputes.
根本没有解决纷争的机制。
There was a whirring of machinery.
有机器发出的嗡嗡声。