Specpure
(=spectroscopically pure)光谱纯的
🗣️ 情景例句
Life is full of ups and downs.
生活充满起伏。
A wise head makes a close mouth.
智者寡言。
In Gambia, as in most parts of Africa, there are few written records of family histoy.
冈比亚同非洲多数地方一样，有关家族的书面记载为数极少。