Osteochondropathy
骨软骨病
🗣️ 情景例句
What are you working on?
你在干什么？
Excuse me to have troubled you.
对不起麻烦你。
Summer is from December to February, and winter is in June, July and August.
夏天从12月到2月，冬天是在6月、7月和8月。