Polyhydroxy-acid
[化] 多羟基酸
🧩 词语组成解析
a. [化]多羟(基)的
🗣️ 情景例句
saying he was going to the railroad station
说他要去火车站
The voters should petition the legislators for better mass transportation.
有权力的人应该向政治家请愿作更佳的大众意向的运输。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，