To become fastened or unfastened by a zipper.
拉开拉链，拉上拉链
A fastener slides along and fastens the hooks together.
拉上拉链，齿钩合到一起。
She zipped up her dress.
她拉上了衣服的拉链。
Your fly is open.
你(裤子)的拉链没拉上。
He zipped up his jacket. = He zipped his jacket up.
他拉上夹克的拉链。
He zipped his bag open [closed].
他把袋子的拉链拉开 [拉上] 。
Please help me to zip my dress on, the fastener's at the back and I can't reach.
请帮我拉上衣服的拉链，拉链在背后，我够不着。
He zipped up his coat before going out.
他出门前拉上了上衣的拉链。
Zip up your coat before going out.
出去前先把你的上衣拉链拉上。
a coat with zippered pockets.
一件有带拉链兜的上衣
Zip your coat. The temperature is 10 degrees below zero outside.
把大衣拉链拉上，外面温度是零下10度。
Better zip your jacket -- it's cold outside.
你最好把衣服的拉链拉上，外面很冷。
Why is your fly often undone/unzipped?
为什么你裤子的拉链经常没有拉上?
Its interlocking teeth would spring open or jam.
拉链上互相啮合的齿能拉开也能合拢。
Zip up, or you'll catch a cold.
把拉链拉上,否则你会感冒。
Will you zip up my dress?
把我衣服的拉链拉上去好吗?
To open or unfasten by means of a zipper or become unzipped.
拉开链条通过拉开一条拉链来打开或解开；拉链被拉开
Fix on a new zip for me–the old one has broken.
替我缝上个新拉链－－旧的坏了。