Unknow
vt. 不知道或不了解
🗣️ 情景例句
I'm glad you came. You're welcome any time.
我很高兴你能来。随时都欢迎你们来。
I've been watching TV all night.
我看了一整晚的电视。
Had he worked harder, he would have gotten though the exams.
如果他努力了的话，他就会通过考试的。