窍门的英文：
doohickey

You'll soon get the hang of it.
你很快会掌握其窍门的。

He hasn't the knack of tuning in to people.
他不懂了解人的窍门。

There's a knack to baking a good cake.
烘烤美味的蛋糕是有窍门的。

So far I haven't got the hang of using the computer
到目前为止我还没有找到使用电脑的窍门

There are tricks in every trade
每一行业皆有其窍门

Is there a trick to getting this window to stay up?
有没有窍门能让窗户保持拉起着？

Once you have got the hang of it, you'll be alright.
一旦你掌握了它的窍门，你就没问题了。

"Whatever he does, Xiao Wang can always get the hang of it"
无论做什么事,小王都能很快找到窍门

There's a knack in/to locking this door which takes a while to master
锁这门要有窍门,得用些时间才能学会

This was not a recipe for success in a world full of egoistic and suspicious nation-states
在一个由充满自私自利和怀疑的国家组成的世界里，这不是一个成功的窍门。

LL: Put the apple here like this. And then turn the handle of the doohickey. And there you have it-- a cored, peeled, and slice apple!
把苹果放在这里，然后转动这个把手。真的耶，你看，皮也削了，核也没了，而且已经切成片了。