Etio-
[醫] 病因
??? 情景例句
Scene: Tom and his wife have invited Carl and David for dinner.
場景：湯姆和他夫人邀請卡爾和大衛吃晚飯。
Why don't you join us?
你不加入我們嗎？
When will the contract be ready?
合同何時準備好？