Betti number
[计] 贝蒂数
🧩 词语组成解析
[计] 贝蒂
🗣️ 情景例句
That's like closing the gate after the horse has bolted.
那无异于马后炮。
Work today,for you know not how much you may be hindered tomrrow.
今朝有事今朝做，明朝可能阻碍多。
They decompose and are quickly destroyed by the weather or eaten by some other creature.
因为它们腐败之后很快就被风化掉，或被别的动物吃掉了。