allergenic substance变: become different; change应: answer; respond to; echo原: primary; original; former性: nature; character; dispositi ...物质: matter; substance; material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:变应原性物质,致敏性物质，即可在微信中查询翻译
