expendable

/ɪkˈspɛndəbəl/ 形容词 C1

中文：可牺牲的、非必需的、消耗性的

Able to be expended; not inexhaustible. · Oil and other expendable resources are frequently the subject of military disputes.
Designed for a single use; not reusable. · The anti-aircraft rocket is fired from an expendable launch platform.
Not essential or mandatory in order to achieve a goal. · The research department was deemed expendable, and its funding was not renewed.
Regarded as not worth preserving or saving; able to be sacrificed. · In the internecine rivalries of large corporations, whole departments may become expendable in the execution of one executive's power play.

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