cam
n
projecting part on a wheel designed to change the circular motion of the wheel as it turns into up-and-down or backwards-and-forwards motion of another part 凸轮(轮上的凸起部件, 用以使轮的圆周运动转变成另一部件的上下或前後运动).
🗣️ 情景例句
And in this family.
也在这个家 。
And it may get colder, it's already November.
并且天气会更冷。
The life forms most likely to develop on a planet would be bacteria.