The coast is clear 已无危险

It comes with the territory 理所当然，必然的结果

It won’t wash 没有说服力

Brass neck 厚脸皮

Reinvent the wheel 浪费时间做无用功

PUT DOWN ROOTS: settle in a particular place and establish connections there. I traveled around quite a bit in my 20s, but then I decided it was time to put down roots.

Frenemy 友敌

To be fair 说句公道话

Air kiss 飞吻

Mansplaining 男人说教