记忆方法
将“expend”与“ex”和“pend”组合记忆。想象时间是有限的资源，你（ex）正在消耗（pend）这些时间，从而“expend”了它，就像时间上的支出一样。
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中文词源
expend 花费
ex-, 向外。-pend, 花销，词源同pound,spend.
英语词源
- expend
-
expend: see spend
- expend (v.)
- early 15c., from Latin expendere "pay out, weigh out money," from ex- "out" (see ex-) + pendere "to pay, weigh" (see pendant). Related: Expended; expending.
权威例句
- 1. Don't expend all your time on such a useless job.
- 不要把时间消耗在这种无用的工作上.
- 2. Children expend a lot of energy and may need more high-energy food than adults.
- 孩子们消耗很多能量，可能比成年人需要更多高能量的食物。
- 3. If you give up exercise, your muscles shrink and fat increases. By the same token, if you expend more energy you will lose fat.
- 停止锻炼会使肌肉萎缩、脂肪增加。同样，如果花更多的精力锻炼，就会减掉脂肪。
- 4. I think it is safe to say that very few students expend the effort to do quality work in school.
- 我认为可以肯定地说学校里很少有学生肯为学好功课下功夫。
- 5. Don't expend all your energy on such a useless job.
- 不要把你的精力全花在这无益的工作上.