Eupyrchroite
圆层磷灰石
🗣️ 情景例句
Please excuse me. I'm very sorry.
请原谅我， 我真的很不好意思。
How many years have you been playing pingpong?
你打乒乓球多少年了？
Custom has not commonly been regarded as a subject of any great moment.
风俗一般未被认为是什么重要的课题。