Sincosite
磷钙钒矿
🗣️ 情景例句
She is a wonderful mother.
她是个了不起的母亲。
We have adopted much more flexible methods in our dealings.
我们在具体操作方法上灵活多了。
The bag fell on the floor and broke open.
糖落在地板上，袋子裂开了。