默契 英文怎么表达？

Tacit understanding

叫chemistry.
We are a team, we have chemistry among us.

we are on the same wavelength.
（字面意思：我们在相同波长上/我们波段相同。）
翻译：
我们很投缘。/我们很默契。/我们臭味相投。

secret treaty or oral agreement

tacit agreement

privity

tacit understanding