primary alkyl halide第一: first; primary; foremost; fi ...代: take the place of; be in pla ...烷: alkane卤代烷: alkyl halide; alkylhalide; alkylogen; haloalkanes一卤代苯: phenylmonohalide下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:第一卤代烷,即可在微信中查询翻译