单词	provide a lesson
释义	provide a lesson 提供课程
随便看	unidirectional mill unidirectional motor unidirectional movement unidirectional MT system unidirectional multiple destination unidirectional network unidirectional non-return needle Unidirectional nystagmus unidirectional ocean current unidirectional one-way element unidirectional operation unidirectional-orientation unidirectional passenger traffic unidirectional path protection ring unidirectional path switched ring unidirectional p-cycle uni-directional physical isolation unidirectional planing unidirectional pleat unidirectional point source Unidirectional Positional Deviation unidirectional potential unidirectional prepreg tape unidirectional pressure unidirectional printing