单词	反著說的
释义	同CONVERSE
随便看	main leads and associated equipment main leaf main lens main level main library main lift main light main line main-line mainline main line area mainline channel mainline code mainline code program counter mainline connector mainlined main line disconnect switch main line guide pipe main line hanger main line (hydraulic) main line(hydraulic) main line[hydraulic] main line load main-line meter main line (of railway)