Cissoid
凹边的,蔓叶线的
🗣️ 情景例句
I'm going to use it for business.
我会在业务上用到它。
He hesitated at nothing.
他对任何事都不会犹豫不决。
They went through the rooms, being careful to touch nothing, as they did not want to hinder the police in their search for fingerprints.
他俩搜遍这每一个房间，小心翼翼地不接触任何东西，因为他们怕妨碍警察寻找指纹。