| 单词 | unexpendable |
| 释义 | unexpendable /un'ik spen"deuh beuhl/, adj. 1. essential; absolutely required: unexpendable resources vital to our security. 2. not capable of being expended; inexhaustible: an unexpendable source of energy. 3. not available for expenditure: The principal of the trust fund is unexpendable. [UN-1 + EXPENDABLE] |
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