useful的详尽释义是：adj.(形容词)有用的，实用的，有益的，有帮助的，有效的，重要值得高度赞扬的，令人满意的，值得称赞的，好的对...很熟练的，能干的，精通...的，得力，优秀的可资利用的，有实际使用价值的。useful副词:usefully；名词:usefulness。useful的读音是英['juːsfl]；美['juːsfl]。
一、详尽释义点此查看useful的详细内容
二、英英释义
"the girl felt motherly and useful"
"a useful job"
"a useful member of society"
"utilitarian steel tables"
三、网络解释
1. useful是什么意思
1. 有效的：如果公共事业振兴署的产出是有效的(useful)并且已经被出售,那么对失业者的公共事业振兴署的类救济不及失业保险那样容易引发通货膨胀. 如果公共事业振兴署的产出有效(useful),那么即使它不在市场上出售,对于那些发现该产出有效的人们来说,
四、例句
It is a useful book and, what is more, not an expensive one.
这是有用的书，更难得的是不贵。
The book contains much useful information.
这本书包含了许多有用的资料。
John always tries to cultivate people who are useful to him.
约翰经常设法和对他有用的人结交。
A sauna in the hotel would be a useful amenity.
旅馆中的芬兰蒸汽浴室倒是个有益的好设施。
She stopped hanging about and did something useful.
她不再闲逛,而是做了些有益的工作。
This manual is full of useful tips.
这本小册子里有很多实用的小建议。
They are not only ornamental, but also useful.
它们不但具有装饰性，而且是实用的。
五、经典引文
How useful he was helping in the garden.
出自：R. MacaulayA useful school sportsman..got into the first eleven at most sports at Dartmouth.
出自：N. StaceyA most useful addition to the Society's list of titles.
出自：A. N. Wilson六、情景对话
Night class-(上夜课)
A：Where are you going?
你去哪里？
B：It’s Tuesday today. I always go to my class on Tuesday night.
今天是星期二。我星期二晚上通常要去上课。
A：I didn’t know you were taking any kind of class. Tell me about it.
我可没听说你要上什么课。跟我说说。
B：Well, I’m learning how to use math in the business environment.
哦，我在学习如何在商务中应用到数学。
A：What for?
学这个有什么用呢？
B：The job market is so competitive nowadays. I want to develop someuseful skills.
现在人才市场竞争激烈。我想拓展一些有用的技能。
A：I really admire you for that. How is it going?
真是佩服你。（课）进展如何？
B：It’s going all right. I’m learning some things for the first time, but I’m also brushing up on some things that I already know.
一切顺利。我在学习一些新东西。同时也在温习一些已经学过的知识技能。
七、词语用法
useful的相关近义词
advantageous、beneficial、helpful
useful的相关反义词
useful的相关临近词
useless、used、usefully、useful at、useful in、useful to、usefulness、useful map、useful top、useful for、useful time、useful work