必需
拼音：bì xū英文解釋：
be indispensable to; need【醫】 besoin
中文解釋：
非有不可的;不能少的發展工業所必需的原料空氣是生活所必需的 >>查看“必需”在國語詞典中的解釋相關詞條：
1.beindispensableto 2.necessity 3.need相關對話：
- 耐心結合勤奮是成功所必需的。Patience combined with diligence is necessary to success.
- ＂房間裡只布置了最簡單的必需品，一張床、一把椅子和一張桌子。＂"The room was furnished with the simplest essentials, a bed, a chair, and a table."
- 衣、食、住所是生活的基本必需品。Food, clothing and shelter are all basic necessities of life.
- 空氣是生命所必需的東西。Air is indispensable to life.
- 她連生活必需品都不能買，更不用說奢侈品。She cannot buy daily necessities, much less luxuries.