门道

wǒ men jì shù gé xīn de mén dao hěn duō

我们技术革新的门道很多。

There are all sorts of possibilities for technical innovation.

kàn chū mén dao

看出门道

find the right way to do something

zài zhèng qián fāng miàn wáng xiān sheng kě yǒu mén dao le

在挣钱方面，王先生可有门道了。

Mr. Wang has always had the means of making money.

tā zhè ge rén mén dao hěn cū

他这个人门道很粗。

He's a very well-connected man.