更换拉链 change the zipper
A：I want to change the zipper on my jacket. How much will a new zipper cost?
我想给我的夹克更换拉链。一条新拉链要多少钱？
B：I've no idea, but you can ask a tailor. He can tell you better than I can.
我不知道，但你可以问问裁缝。他比我说得更清楚。
cost /k?st/ v. 需花费；价钱为；付出（代价）
tailor /?te?l?(r)/ n. 裁缝 v. 裁剪；使适应
■ I've no idea. 意思是说“我不清楚，我不知道”，相当于 I don't know。
把拉链缝到夹克上 sew the zipper on one's jacket
A：I've got a new zipper. Can you help me sew it on my jacket?
我有一条新拉链。你能帮我把它缝到我的夹克上吗？