cyclodiolefin环: ring; hoop二: two双环二烯烃: bicyclodiolefin环二烯: cyclic diolefine; cyclobutadiene; cyclodiene二烯烃: alkadienes; dialkene; diolefin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:环二烯烃,即可在微信中查询翻译