Faculative
a. 允许的, 任意的, 兼性的, 偶发的
🗣️ 情景例句
She's having an illicit affair.
她有一个不道德的丑事。
Your appointment will be next Thursday at 10 o'clock.
你的约会时间将是下一星期四的10点钟。
They praised him highly.
他们大大地表扬了他。