Minorant
弱函数
🗣️ 情景例句
Um...Alexandra, let me introduce you.
噢……Alexandra 让我来介绍一下。
It is too late to shut the stalbe door when the steed is stolen.
失马锁厩，为时已晚；贼去关门，为时已迟。
The growth of alternative mental interests is a long process.
精神上多种情趣的培养是一个长期的过程。