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- 一般认为像木工和烹饪之类的实用课程不如数学重要。
Practical lessons, like woodwork and cookery, are not considered as important as maths.
- 他们的研究项目实用价值很有限。
Their research project has limited practical utility.
- 你收集到的大部分情报没有实用价值。
Much of the information you have gleaned is of no practical use.
- 这本书理论性太强，我需要一本实用的。
This book is too theoretical; I need a practical one.
- 你的发明不实用。
Your invention is not practical.
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