be sick of（口语）对某事感到厌烦、厌倦

【例句】
You must be sick of all those dice and buttons by now!
你现在一定已经对这些小方块和钮扣厌烦了！

Play can make one fresh and cheerful so that one may not be sick of.
玩耍能使一个人精力充沛，心情愉快，使人不至于厌倦工作。