Trolleite
羟磷铝石
🗣️ 情景例句
You know, the goods were inspected by the Commodities Inspection Office before shipment.
你知道，这批货物在装船前是经过商品检验局检验的。
How much does she eat?
她要吃多少？
Then knowledge began to be accumulated according to a systematic plan.
于是，知识便开始有系统有计划地积累起来。