Barrandite
铝红磷铁矿
🗣️ 情景例句
Any discount, OK?
可以打个折扣吗？
Let me explain my actions.
请听我解释。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，