After all, it is no use serving up TV dinners if the kids won't eat them.

归根到底，如果孩子们不肯吃，就是端上即食快餐也没有什么用。

《柯林斯英汉双解大词典》

Although the machine looks cumbersome, it is actually easy to use.

这机器虽然看起来笨重，其实使用起来很方便。

《柯林斯英汉双解大词典》

It is often appropriate to use the local dialect to communicate your message.

用方言来交流信息往往很合适。

《柯林斯英汉双解大词典》

Montclin did not move. "You know as well as I do that it is no use to tell Athnaise anything,"

VOA: special.2009.06.27

What was neat about it is before that time, the predominant species to use for air conditioning or refrigeration was ammonia.

在这之前是很整洁的，之前最主要的用于空调或者冰箱的,物质是氨。

麻省理工公开课 - 固态化学导论课程节选

It is, of course, important if you use animal testing to treat the animals with as much dignity as possible.

如果要用动物做实验的话，请给予这些动物最大的尊严，我认为一点十分重要。

需要动物实验吗？ - SpeakingMax英语口语达人

As others say it is not science itself which influences our lives it is the use to which it is put.

BBC: Science: Is it always for the best?

It is not a clean product by any means so step two is cleaning it up (step one is the use of molasses since it is a by-product).

FORBES: DON Q: SUSTAINABLE LIQUOR

And with how easy it is to use, if there IS a title on Steam, there is simply no reason to go to a brick and mortar store to buy it.

FORBES: Retailers Claim Steam is Killing PC Game Sales