那家伙可能会出卖朋友。

She was saying something that would betray herself.

我们没有出卖朋友。

We haven't ratted on our friends.

我万万没有想到他会不惜出卖朋友.

I never thought he would condescend to betraying his friends.

但是我一看到约翰·特拉沃尔塔那张阴险的面容，就时刻留意他什么时候会突然背叛和出卖朋友。

But as soon as I saw that insidious visage of John Travolta, I began to pay attention to when he would betray and sell out his friends.