a. 无利的, 无益的
1、It is profitless to continue arguing.
继续争论是无益的。
2、Let us have no part in profitless quarrels.
我们不要卷入毫无意义的争吵之中。
3、Revising the procedure was an entirely profitless exercise.
对程序进行修改是徒劳无功的。
4、Smoking is absolutely to health harmful and profitless, behoove prohibits in the round.
吸烟对健康是绝对有害无益的，理应全面禁止。
5、Profitless usurer, why dost thou use So great a sum of sums, yet canst not live ?
赔本的高利贷者，为什么浪用那么一笔大款，还不能过日子?
6、Increasingly profitless growth in the corporate sector will ultimately rebound on the public finances.
企业增长的利润越来越薄，终极将影响到公共财政。
7、It is harmful and profitless that actually the puerpera is eager to choose and employ persons joining filling body.
其实产妇急于用人参补身子是有害无益的。
8、The poor ballet dancer must devote years of incessant toil to her profitless task before she can shine in it.
可怜的芭蕾舞演员必须把多年不断的辛劳献给她无益的苦差事，之后她才能在芭蕾上大放异彩。