I'll be at liberty this afternoon.

今天下午我有空。

You are at liberty to use my bicycle.

我的自行车你可以随便用。

I am not at liberty to mention his name;

我不能说他的名字；

One morning she told me I was at liberty.

一天早晨她告诉我没有我的事了。

At large: Not in confinement or captivity; at liberty

不受限制和束缚的；自由的：

Well, I'm not at liberty to divulge their names.

好吧，我不能透露他们的名字。

Sorry, but I'm not at liberty to reveal that information.

对不起，我不能随意泄露情报。

Each member is at liberty to express his or her views.

每个成员均可自由陈述意见.

I am going to live at liberty and my pleasure henceforth.

我打算自由和随心所欲的过日子今后!

Another effort set me at liberty, and I stood erect before him.

我再一挣扎便脱了身，在他跟前昂首而立。