这条裤子有一个拉链和两个纽扣。

These trousers have a ___zipper and two buttons.

我打不开我的包；拉链卡住了。

I can't open my bag; the ___zipper is stuck.

请检查一下你夹克上的拉链是否拉好了。

Please check that the ___zipper on your jacket is closed.