You're not going, and that's my last word on the matter.

你不能去 这是我在这件事上的最终决定

These apartments are the last word in luxury.

这些房间最为豪华。

He always has to have the last word in any argument.

在任何争论中总是得他最后说了算。

She does like to have the last word in any discussion.

她的确喜欢在任何讨论中发表最终意见。

The emphasis is on the first syllable of the last word.

重音是在最末一个单词的第一个音节上。

I haven't said my last word yet.

我还没有说完我的话。