Pregroup
前群; 准群
🗣️ 情景例句
He's the Dean of Admissions for the University of Michigan.
他是Michigan大学的新生注册主任。
Some people sometimes ask me what is the secret of such a tremendous growth.
有时有人问我取得如此惊人增长的秘密是什么。
At the moment, he's in Madrid.He flew to Spain a week ago.
现在他在马德里。他是一星期以前飞到西班牙的。