Collinite
凝胶煤素质; 无结构腐殖体
🗣️ 情景例句
I just solved the mystery.
我刚刚把那个谜底解开了。
Open your eyes!
眼睛睁大点！
Such creatures have rarely been seen alive by man as they live at a depth of six hundred feet.
人们很少能看到活着的这类动物，因为它们生活在600英尺深的水下。