expendable

adj. 可耗尽的，可牺牲的

expectancy, expectant, expectant mother, expectantly, expectation, expectation of life, expected, expectorant, expectorate, expedience, expediency, expedient, expediently, expedite, expedition, expeditionary, expeditious, expeditiously, expel, expend, expenditure, expense, expense account, expensive, expensively, experience, experienced, experiential, experiment, experimental, experimentally, experimentation, expert, expert cook, expertise, expertly, expertness, expiate, expiation, expiration,