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
He says it always brought him good luck on the baseball team.
他说 ,当年他在棒球队时这手套总是带给他好运。
A woman's work is never at an end.
妇女的活计做不完。
Thanks for the party last Sunday. I enjoyed it very much.