Bessel
[计] 贝塞尔
🗣️ 情景例句
And your friends are planning to go to Columbia?
而且你的朋友们也准备上Columbia大学 ，对吗？
And go out into the open to watch all kinds of fireworks glittering everywhere in the dark sky.
到外面去看夜空中绚烂多彩的焰火。
It cuts a clean cylinder of rock,
这种钻头能切割一段光滑的圆柱形岩石，