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
speak to a real-estate agent about a house.
和房地产仲介商谈一谈关于房子的事。
After eating breakfast,I go back upstairs again.
在吃早餐以后,我再回楼上。
He insisted on the assistant's counting the money before he left -- 30,000 pennies in all!