Biphosphate
磷酸氢盐
🗣️ 情景例句
and to read along with the children--their children.
和孩子们--他们的孩子们， 一起阅读。
I've got a headache.
我头痛。
He told me that the firm could not afford to pay such large salaries.
他还告诉我，公司支付不起这么庞大的工资开支，