| 单词 | 非必需 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔elective〕She agreed to an elective hysterectomy.她同意做非必需的子宫切除手术。外研社新世纪〔expendable〕In reproductive terms, men are expendable.就繁衍来说, 男性并非必需。外研社新世纪〔luxury〕Something inessential but conducive to pleasure and comfort.奢侈品：使人愉快、舒服但非必需的东西美国传统〔non-essential〕In a recession, consumers could be expected to cut down on non-essentials like toys.经济不景气时，消费者可能会减少在类似玩具等非必需品上的支出。柯林斯高阶〔nonessential〕All nonessential personnel had to be laid off.所有非必需人员必须解雇。韦氏高阶〔unessential〕Not necessary or important; dispensable.非必要的或非重要的；非必需的美国传统 |
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