Contravalid
反有效的, 无效的
🗣️ 情景例句
It will take less than 5 minutes to check out.
退房最多只需5分钟。
Until the end of the week.
借到周末。
Reporters kept pressing for interviews so lawyers had to be employed to act as spokesmen for the family at press conferences.
由于记者纷纷要求会见，他们不得不请了律师充当他们家的发言人举行记者招待会。