worthwhile
单词辨析：
具有介词性质的表语形容词，通常用在动词 to be 之后，其后应接名词、代词（宾格）、数词或主动形式的动名词。
This painting is probably worth thousands of pounds.
这幅画可能价值数千英镑。
This book is definitely worth reading.
这本书确实值得一读。
It was a difficult journey, but it was worth it.
这次旅行很艰苦，但很值得。
可作表语或定语，指某事物是值得的，或某事是值得花时间、金钱、精力做的，后接动词不定式和动名词均可。
We felt that the discussion had been very worthwhile.
我们感到这次讨论很值得。
This is a worthwhile career.
这是一项值得为之奋斗的事业。
It wasn't worthwhile to continue/continuing the project.
继续这个项目很不值得。
有时，worthwhile可分拆开来，中间插入所需要的物主代词。
This film is worth our while to see again.
这部影片值得我们再看一遍。
作定语时，主要用于修饰人或诸如事业、生活等抽象名词；作表语时，常后接被动语态的动词不定式，或介词 of 加名词或被动语态的动名词。
a worthy champion/opponent/winner
值得尊敬的冠军/对手/获胜者
a worthy aim/cause/life
崇高的目标/高尚的事业/有价值的生活
That's a worthy task.
那是一项很有价值的工作。
The museum is worthy to be visited/of a visit/of being visited.
这个博物馆值得参观。
Local councillors thought that the program was worthy of support.
当地政务委员们认为该规划值得支持。
相关例句：
Is it worthwhile taking such risks?
犯得着冒这种风险吗？
Although this experiment fails, it's still worthwhile.
这次试验虽然失败了，但还是值得的。
It made our time and work truly worthwhile.
它使我们感到我们的时间和工作真正地有价值。
It might be worthwhile to consider your attitude to an insurance policy.
考虑一下你对投保的看法也许有所助益。
But it also is worthwhile, because it creates jobs and gives people access to the American dream.
但这仍然是值得的，因为它创造了就业机会，也给了人们实现美国梦的机会。
A very interesting and worthwhile thing to do.
那件事情是一个非常有趣和值得去做的。