Basoid
碱性胶体, 碱胶基
🗣️ 情景例句
Do you like white or colored pearls?
你喜欢白的或彩色的珍珠吗？
She was the more promising worker of the two.
她是两个工人中比较有前途的一个。
Is it a black one?
是快黑的吗？