Prochondral
软骨形成前的
🗣️ 情景例句
It was only a tummy ache.
仅仅是肚子有点痛。
You must come right away.
你必须马上过来。
She finished it at half past nine. She went to bed before a quarter to ten.
30 她完成了作业。她9：45之前上床睡觉。