We made a mistake

我们曾犯下了一个错误

Make a mistake犯错误； 弄错；

例句：
It's easy to make a mistake .

犯错误很容易。

I'd always played a defensive game, waiting for my opponent to make a mistake.

我总是采取防守型的打法，等待对手出错。

Be careful or else you will make a mistake.

小心,否则你会犯错误.

We fell outta love

我们不爱了

Outta prep.“out of”的简写体；

Fall out of从…掉了下来；

例句：

In his sleep he let the book fall out of his hand.

他睡着时书从手中掉了下来.

How on earth did you fall out of the window.

你究竟是如何从窗户掉出去的.

Some constructions gradually fall out of use, others push their way in.

有些结构不用了,而另一些结构又出现了.