have a hand in

基本解释

Foreign private businessmen in particular shall not be allowed to have a hand in this line of business.
尤其不应允许外国私商来我国插手经营此项业务。
But he framed this as inevitable, as if history were something that only happens to us, rather than something we can have a hand in making.
但他把这说成是无可避免的，仿佛历史只是发生在我们身上的什么东西，而不是我们也可以参与创造的某种东西一样。
Fortunately then, reducing methane levels is something that all of us can have a hand in right now by consuming less meat and dairy products.
但值得庆幸的是，我们每个人现在都能善尽一份心力，藉由减少吃肉和奶制品来降低甲烷在大气中的含量。

"So if they wanted to have a biopsy done, they had to arrive at the hospital with cash in their hand.
I think David Swensen has had a big hand in doing that because we have the money that makes it possible.
我认为大卫·斯文森在投资上很有一手,因为有了钱,这一切才成为可能
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So, somewhere in between, the bonds are, we have a range of bonds between ionic on the one hand, and perfectly covalent on the other hand.
因此在中间，这些键，一方面是离子性，另一方面是完美的共价键。
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But these caveats are well known to us and always have a hand in our emptor.
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