“第一次”造句
他们的完整目录售价5美元，
第一次订购时可返还这5美元。
Their full catalogue costs $5, redeemable against a first order.
是三块两毛九, 但是因为你们是
第一次来, 所以免费招待你们.
It's $ 3.29, but since this is your first visit, it's on the house.
大约三十年前,他花了3美元
第一次整批买下50本书.
Nearly 30 years ago he bought his first job lot of 50 books for $ 3.