英:[bi: ˌɪndisˈpensəbl tu:]
美:[bi ˌɪndɪˈspɛnsəbəl tu]
必需;
1 The hot water rinse was found to be indispensable to remove the soap.
为除去皂液,用热水冲洗是必要的.
2 Air be indispensable to life.
生命离不开空气.
1 必要
necessary essential obligate requisite needful integrant need want call point occasion necessity imperative exact imply be necessary to
2 必要的
necessary essential obligate requisite needful integrant be necessary to
3 不可缺少的
be necessary to