Phosphono-
[化] 膦酰基
🗣️ 情景例句
Are the bathrooms on this train clean?
火车上的卫生间干净吗？
Be slow in choosing a friend; slower in changing.
选择朋友要审慎，摒弃更要审又慎。
I have something to tell you.
我有事要告诉你。