The book includes some useful facts about animal and plant life .

这本书包括了有关动植物的一些 有用的知识。

All of these are quite useful breeds whose potentiality has not been realised .

所有这些都是十分 有用的品种，其潜力还没有被完全发挥。

I picked up some highly useful old books .

我偶然得到了几本极为 有用的旧书。

Brick rubble is useful as the base for paths and patios .

碎砖石 可以用来铺路基和庭院地基。

Hypnotherapy can be useful in helping you give up smoking

催眠疗法可能 有 助于你戒烟。

This new dictionary is very useful helpful w_310 to me .

对我来说这本新词典很 顶事。

It would be useful if you could nail down the source of this tension .

如果你能弄清这种紧张的根源，将会 大有益处。

The police gained a great deal of useful information about the organization .

警方收集到了大量关于该组织的 有用信息。

The slow cooker is very useful for people who go out all day

慢炖锅对于整天都不在家的人来说很 有用。

The accommodation is some distance from the clubhouse so a hire car comes in useful .

住处离会所有一段距离，所以租一辆车会 很 有用。

I hope at least my daughter was able to offer you some useful pointers

我希望至少我的女儿为你提供了一些 有用的建议。

My mobile phone is extremely useful

我的手机非常 有用。

All of our cultural heritage which is useful should be inherited but in a critical way .

凡属我国文化遗产中 有用的东西，都应当批判地继承。

Researchers realised that a tunable laser beam might be useful in surgery .

研究人员意识到，可调谐激光束也许可以 用在外科手术中。

Alternative treatments can provide a useful back-up to conventional treatment .

替代疗法能为传统的治疗提供 有效的辅助。

This accident affords us a useful lesson .

这个事故为我们提供了 有益的教训。

I really do not think that an inquiry would serve any useful purpose

我真的认为调查没有任何 实际 意义。

The canal has proved useful to the county in many ways .

这条水渠给这个县带来的 好处是多方面的。

Year by year a few of these slang terms prove so useful that they graduate into respectable society .

年复一年，这些俚语中的一些证明是十分 有用的，因而逐渐进入了上流社会。

If you 're converting your loft these addresses will be useful .

你要是打算改造阁楼，这些地址会派上 用场。

HDTV is especially useful if there are a lot of special effects .

有很多特效的时候，高清电视就格外 有用了。

Anger is not necessarily the most useful or acceptable reaction to such events

对于这种事，发火不见得是最 有用或最能被接受的反应。

It is no use simply to tell adolescents to shape up and do something useful .

仅仅告诉青少年要品行端正，做有 意义的事，是没有用的。

Do not idle about like this and do something useful .

别再这样闲混下去了，做些 有益的事吧！

The Shakers believed that furniture should be plain simple useful practical and of sound construction

震颤派教徒认为家具应当朴素、简单、 有用、实用，并且结构合理。

This exercise can be quite a useful ice-breaker for new groups .

这个活动可以 有效地活跃新群体内的气氛。

From this chastening experience he learnt some useful lessons .

从这次惨痛的经历中他得到了一些 有益的教训。

It has many omissions ; even so it is quite a useful reference book .

那本书有许多遗漏之处，即使如此，尚不失为一本 有用的参考书。