drop by the wayside

半途而废, 堕落下去

例句与用法：

Drop by any time you are in town.

来城里的话就到我这儿来玩。

A can for oil, especially a can with a spout constructed to release oil drop by drop, as for lubricating machinery.

油罐盛油的罐，特别是指安着可一滴一滴地滴油的喷嘴的油罐，用以润滑机器

Don't forget to drop by at the gas station.

别忘了到煤气站去看看。

The drill sergeant took the men on a ten-mile march and they were all ready to drop by the time they got back to barracks.

那个教官带领士兵们作了10英里的行军，结果他们回到军营时全都累得快要趴下了。