Osteocolla
[植]骨状项圈
🗣️ 情景例句
What's the matter?
到底发生了什么事？
I'm not familiar with that part. Let me call someone who is more knowledgeable.
那部分我不熟悉，让我找专业人士来说明。
Are you free this Saturday?
你这个星期六有空吗？