Metaphophate
偏磷酸盐
🗣️ 情景例句
It was so nice to be out in the country.
出去置身乡下真是太好了。
My father goes back to work in the evening.
我父亲傍晚回去工作了。
He asked me if he could go steady with me?
他问，能不能继续和我约会。