Quadrafos
[商]四磷酸钠
🗣️ 情景例句
When can we go fishing?
我们什么时候去钓鱼？
When will he come to see you?
他什么时候来看你？
He was rather elderly with grey hair and clear blue eyes.
他上了年纪，有着灰白的头发和明亮的蓝眼睛。