plugn.塞子;插头;推销;火花塞;口嚼烟v.塞;堵;宣传;插上插头;苦干
plug body插头外壳
plug reef插头礁
plug gage塞规
plug seat插座,插孔
plug load插塞载荷
plug flow栓塞流
plug intov.把插头插入
plug bush插套
plug core塞子
plug cock塞嘴,旋塞,油塞