expendable
adj. 可消费的；排出的；不重复使用的；可牺牲的
n. 消耗品
例句
Once our services cease to be useful to them, we're expendable.
一旦我们的服务对他们没了用，我们就是可消耗的了。
《柯林斯英汉双解大词典》
During the recession, training budgets were seen as an expendable luxury.
在衰退时期，培训预算被看成是消耗的奢侈品。
And innocent people's lives are not expendable.
无辜者的生命不是可消耗品。
