How useful do you think they are?

你认为它们的帮助大吗？

youdao

Few of us wish to turn the clock back, but perhaps we need to remind ourselves how useful the right obstacles can be.

很少有人希望时光倒流，但或许我们需要提醒自己，适当的障碍是多么有用。

youdao

If one compares the image of the woman in the women's magazine with the goods advertised by those periodicals, one realizes how useful a projected image can be commercial.

如果把女性杂志上的女性形象与这些杂志上的广告进行比较，你就会意识到这些投射的形象在商业上是多么有用。

youdao

"When those products are at the end of their useful life, how are they going to be broken down?

VOA: special.2010.01.08

These two relations involving entropy are also useful because they'll let us see how entropy depends on volume and pressure.

这两个涉及熵的关系也非常有用,因为他们告诉我们,熵和体积，压强的关系。

麻省理工公开课 - 热力学与动力学课程节选

What does come out, which is very useful is, if you do run the reaction, here's how much heat comes out.

能得到的结果是，如果我们进行这个化学反应，有多少热量放出，当然这也是很重要的。

麻省理工公开课 - 热力学与动力学课程节选

How useful would email be if it only allowed you to send messages within your company?

FORBES: Digitizing Doctors and Hospitals? Think Like Target

Much bigger and longer studies would be needed to see how useful this technique could be.

BBC: Diabetes, diet and obesity

Bono has also had realizations about how useful the Internet can be for transparency.

FORBES: Bono's 'Humbling' Realizations About Aid, Capitalism And Nerds