dispensable /dɪˈspɛnsəbəl/ adjective Learner's definition of DISPENSABLE
[more dispensable; most dispensable]
: not necessary or required不必要的;可有可无的 -
Computers have made typewriters dispensable.电脑已使打字机变得可有可无了。
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Do you consider any of the staff to be dispensable?你认为有哪位职员是可有可无的吗?
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dispensable luxuries不必要的奢侈
— opposite indispensable