Validating
n. 确认
🗣️ 情景例句
Oh. I have the key. Grandpa sent it to me.
啊。钥匙在这里。爷爷寄来给我的。
All I have to do is learn English.
我所要做的就是学英语。
You look as if you didn't care.
你看上去好像满不在乎。