We could complete each other's sentences because we were on the same wavelength.

我们志趣相投，因此能够说出对方没说完的话。

He says it's okay to work late as long as you're on the same wavelength as your spouse.

他说只要你和你的配偶在同一个频率上，工作到很晚是可以的。

So she and I are on the same wavelength.

所以她和我在同一个波长上。

I guess we are on the same wavelength.

我喜欢跟她说话，我觉得我们俩“频率相同”。

If you and I are on the same wavelength then we're thinking the same.

如果你和我在同一个波长上， 那么我们的想法是一样的。

Similar expressions are to be on the same wavelength or to sing from the same song sheet or to sing from the same hymn sheet.

类似的表达有 be on the same wavelength、sing from the same song sheet 和 sing from the same hymn sheet。

But " to be on the same wavelength" , you can use it; " reinvent the wheel" , you can use it, etc.

但是“要在同一个波长上” ，你可以使用它； “重新发明轮子” ，你可以使用它， 等等。

I'm not mad. It's just...You wanna believe you're on the same wavelength as someone, and then it's just- it's a little disheartening when you find out you're not. That's all.

倒没憋一肚子气，只是...你总是希望能和一个人心有灵犀，可到头来...发现其实没那么默契时，总有点沮丧。就这样。