Phosphonous acid
[化] 亚膦酸
🧩 词语组成解析
🗣️ 情景例句
I don't care for a ranch type.
不爱平房。
Education begins a gentleman, conversation completes him.
人的教养始于教育，成于社交。
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，