useful的意思和读音

useful

: [ˈjusf(ə)l] : [ˈjuːsf(ə)l]

adj.

adj.+n.useful information,useful tool,useful life,useful way,useful book

adj.useless,disadvantageous

adj.helpful,practical,functional,serviceable,constructive

usefuladj.

1.that can help you to do or achieve what you want

a useful gadget

It can be useful to write a short summary of your argument first.

He might be useful to us.

These plants are particularly useful for brightening up shady areas.

Don't just sit watching television─ make yourself useful !/ target=_blank class=infotextkey>

This information could prove useful .

Your knowledge of German may come in useful(= be useful in a particular situation) .

Some products can be recycled at the end of their useful life.使

2.(informal)good; of the right standard

He's a very useful player.

adj.1.,,,2.,... (at)

adj.1.helpful for doing or achieving something

1. used a. useful a. useless a. ...

2. used a. useful a. useless a. ...

3. ( Cynical) useful( BitterTaste) ...

4. wonderful useful careful ...

5. used fuel reprocessing plant useful useful beam ...

7. usage n. 使 useful adj. useless adj. ...

:,,,,,,,

1.This probably would not be very useful as it would only be possible to everaccess one cache at a time.

2.Different laptops may respond to 'standby' in different ways - in many it is only a temporary state and may not be useful for you.-

3.And this model is going to be very, very useful for a lot of the things that we'll treat.西

4.Like an entertaining satire, the plot and characters of that report offer useful material for contemplation.使

5.It is often useful to recognize a particular pattern in text and mark it up.

6.Based on what you know of the job market, which of your courses were the most useful? The least?

7.When you live a life of deception you get to be very good at it; a well-constructed lie is a lot more useful than the truth.

8.But I gave it a chance, because smart people who I trusted told me that it's very useful.

9.However, it is often useful to provide additional constructors.

10.It could be useful, or at least interesting, to let a utility on my home system keep track of hits to my Web server.Web