A2
[医] 主动脉第二声
🗣️ 情景例句
You probably heard about it. We have private teachers in our holiday.
或许你已经听说过。我们交大的学生在假期间做家教。
What time are you coming back?
你什么时间回来？
Yes, I feel tired all the time.
对，我总是感到累。