Polymolybdate
多钼酸盐
🗣️ 情景例句
How many words can you type per minute?
你一分钟能打多少字？
What day is today?
今天星期几？
Suddenly, one of the children kicked a ball very hard and it went towards a passing boat.
突然，一个孩子狠狠地踢了一脚球，球便向着一只划过来的小船飞去。