1What would you give me in exchange for my recorder?
2Their courage was an example to all of us.
3I'd like to exchange some pounds for dollars.
4 He forgot himself in his excitement（得意忘形）
追问第一句能不能翻译一下
追答我给你我的录音机,那你给我什么作为交换呢?
追问不好意思，打扰能不能再用come into existence（产生）造句
追答The company came into existence 30 years ago.
这家公司成立于三十年前。