Predentary
前齿骨的
🗣️ 情景例句
in a horse and carriage.
坐马车。
You'll solve the problem if you concentrate upon it.
如果全神贯注，你就会解决这个问题。
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；