
好词典

源自古英语 'un-', 与德语 'un-' 同源,表示否定或相反的含义。
❶ 表示否定或相反的前缀,加在形容词、动词或名词前,构成反义词,表达与原词相反的含义。
“The door was unlocked when I arrived.”
(我到达时门是未锁的。)
“She felt unhappy after hearing the news.”
(听到消息后她感到不开心。)
un- + adjective — 用于形容词前,表示与原词相反的状态或性质。
“The weather was unusually warm for December.”
(十二月的天气异常温暖。)
un- + verb — 用于动词前,表示取消或逆转该动作。
“Please undo the changes you made to the document.”
(请撤销你对文档所做的更改。)