Fcc
[计] 联邦通信委员会\\n[化] 流化床催化裂化
🗣️ 情景例句
I'm afraid I stayed too long.
恐怕我呆得太久了。
How long will it take to have this radio fixed?
修理这收音机要多久？
Before he retired, Frank was the head of a very large business company, but as a boy he used to work in a small shop.
在退休前，弗兰克是一家非常大的商业公司的经理，但他小时候却在一家小铺里做工。