Hemoptoe
咯血
🗣️ 情景例句
Tell me about your educational background.
告诉我你的学习背景。
The sooner we go and face the music the better.
咱们还是早点去挨批为好。
He did not know from which part of Africa his ancestor had come.
他不知道祖先来自非洲的什么地方。