Threadless
a. 无线的, 无螺纹的
🗣️ 情景例句
They have nice things, but they've very expensive.
它们的东西不错，但很贵。
Drop dead
晕倒
The tape was so stick that they did not dare to cross it.
胶带极粘，蚂蚁不敢从上面爬过。