Secdef
abbr. Secretary of Defense 国防部长
🗣️ 情景例句
I'm going to use it for business.
我会在业务上用到它。
Can you guess what I was doing this morning?
你能猜测我今早正在做什么吗？
John works very hard. He goes to work early.
约翰工作很努力。他早早上班。