a. not even or uniform as e.g. in shape or texture
s. variable and recurring at irregular intervals
a. 不平坦的, 不均等的, 奇数的
1. The ground was uneven, making it difficult to walk.
地面不平坦，走起来很困难。
2. Her performance was uneven, with some excellent moments and some mistakes.
她的表演不平衡，有些精彩的时刻，也有一些错误。
3. The prices of the products are uneven across different stores.
不同商店的产品价格不一致。