That had an interesting and extremely useful side effect.
那有一个有趣和非常有用的负作用。
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！
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。
And use it. It's extremely useful.
它是非常有用的。
Flying is extremely useful and not to mention, fun.
飞行很有用，并且它们很有趣。
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。
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。
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