Denivellation
不平度
🗣️ 情景例句
I have a complaint for you.
我有点不满意的事要跟你谈谈。
Two dogs strive for a bone,the third runs away with it.
两狗相争一骨头，第三只狗衔起走。
or of the habits of the social insects, let us say.
和昆虫群居的习性