Aval
[经] 保兑
🗣️ 情景例句
You should use 'officer' to address a policeman.
你应该用 'officer' 来称呼警察。
Whom will you invite to the wedding?
你将邀请谁参加婚礼？
Do you want a chicken,Mrs. Bird?They 're very nice.
您要买只鸡吗，伯德夫人？这些鸡很好。