短語詞組短語Except When Absolutely Necessary 除非必須Unless Absolutely Necessary 除非絕對(duì)必要Only when absolutely necessary 僅僅在絕對(duì)必要的時(shí)候Although Not Absolutely Necessary 雖然不絕對(duì)必要Important And Absolutely Necessary 重要和必不可少An Absolutely Necessary Step 絕對(duì)必要一步be absolutely necessary 絕對(duì)必要 返回 absolutely necessary