cyclic hydrocarbon环烃: cyclic hydrocarbon碳原子: carbon atom间: space in between; opening相互: mutual; reciprocal; each oth ...连接: connect; fit together; link; ...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:环烃(碳原子间相互连接成环状),即可在微信中查询翻译