Harkerite
硼硅钙镁石
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
Hang on, please.
请等一下。
I decided to take her by train.
我决定带她乘火车去。