Homogen
具有共同起源的一群
🗣️ 情景例句
Something wrong?
有什么不对劲吗？
No good building without a good foundation.
基础不好，建筑不牢。
They may also have used wood and skins, but these have rotted away.
他们也可能用过木头和兽皮，但这类东西早已腐烂殆尽。