My mobile phone is extremely useful.
我的手机极为有用。
And use it. It's extremely useful.
它是非常有用的。
这个非常有用。
Flying is extremely useful and not to mention, fun.
飞行很有用，并且它们很有趣。
That had an interesting and extremely useful side effect.
那有一个有趣和非常有用的负作用。
This book is extremely useful as a supplemental text.
这本书是非常有用的作为一个补充文本。
Small talk is extremely useful when first meeting others.
与人初次见面时，闲聊是非常管用的。
These two tools are rather simple, but can be extremely useful.
这两个工具都非常简单，但又可能极为有用。
As always, feedback on the forums is extremely useful and welcome.
在论坛上发表反馈是十分有用和受欢迎的。
At this point, the letter of credit can be extremely useful.
就这个问题而言，信用证非常有用。
Other extremely useful information is provided via the Columns TAB.
其他极其有用的信息是通过Columns选项卡提供的。
It is extremely useful for species that are really hard to find.
她说，“这项技术对很难找到的物种来说非常有用。”
CommonJS is an extremely useful effort; I hope it will be successful.
CommonJS非常有用；我希望它会成功。
Spanish is extremely useful in Europe as a language of commerce.
西班牙语在欧洲是十分有用的商界语言。
Spanish is extremely useful in Europe as a language of commerce .
西班牙语在欧洲是十分有用的商界语言。
The Pareto law - principle or 80/20 - is extremely useful in many areas.
巴莱多定律或者称二八定律在许多方面都非常有用。
I've found this precept to be extremely useful with my happiness project.
我发现这个规则对我的快乐计划特别有用。
Are you ready to learn some fun, and extremely useful English? Then let's go!
准备好学习最有趣、最实用的英语了吗？我们开始吧！
Personally, I felt the FCIB Online Course was extremely useful and informative.
我个人觉得FCIB的在线课程非常有价值，令人受益匪浅。
It's a useful introduction to an extremely complex subject.
这是对一门极为复杂的学科的有益入门教程。
It's a useful introduction to an extremely complex subject.
这是对一门极为复杂的学科的有益入门教程。
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