Word: 关键

关键不在穿什么，而是怎么穿。

Guānjiàn bú zài chuān shénme, érshì zěnme chuān.

It's not what you wear, it's how you wear it.

这是一个关键点。

Zhè shì yī gè guānjiàn diǎn.

This is a crucial point.

这正是问题的关键。

Zhè zhèngshì wèntí de guānjiàn.

That's the point.