短语词组短语impulse donator 冲动型捐款人donator detail 输血者net donator 净污染者habitual donator 习惯型捐款人oxygen donator 供氧体;翻译donator help 捐赠帮助;纯洁帮助methyl donator 甲基供体hydrogen donator 供氢体 返回 donator