名词 undercoat:

1. seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion

2. the first or preliminary coat of paint or size applied to a surface

3. thick soft fur lying beneath the longer and coarser guard hair

动词 undercoat:

1. cover with a primer; apply a primer to

underpann.底盘(拖盘)underprep.低于；在 ... 下；在 ... 内；在 ... 控制下adv.在昏迷中；在 ... 下adj.下面的；从属的；少于的undersigned all agree签署人一致同意under the pretense of[法] 藉口； 以 ... 为托词underprivileged homes贫困户under water explosion水下爆炸undermining-torrent侵蚀野溪under water buildings水工建筑物under seal of secrecyadj.保证严守秘密Under the Lion' s Pawundermoderated system慢化不足体系undercurrent tripping欠流跳闸