The newsletter is a useful channel of communication between teacher and students.
发简讯是沟通师生的有益渠道。
They are also becoming a useful tool for firefighters, helping them find and fight wildfires.
它们也正在成为消防员的一个有用工具，帮助他们发现和扑灭野火。
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。
Marking a book is a useful skill, but it's important to do it right.
在书上做标记是一项有用的技能，但重要的是要做对。
Your local library will be a useful source of information.
你们当地的图书馆就是很好的资料来源。
The article served as a useful starting point for our discussion.
这篇文章成了我们展开讨论的良好起点。
The figures are a useful guideline when buying a house.
买房时这些数据很有参考价值。
In reality, carbon taxes alone won't be enough to halt global warming, but they would be a useful part of any climate plan.
事实上，仅靠碳税不足以阻止全球变暖，但碳税在任何气候计划中都有其作用。
What a useful dictionary this is!
这是一本多么有用的字典啊！
Many artists today are turning AI into a useful tool.
如今，许多艺术家正在把人工智能变成一种有用的工具。
He is an honest student today and a useful man tomorrow.
他今天是一个诚实的学生，明天就会成为一个有用的人。
I have a useful book. It is about how to play basketball.
我有一本有用的书。它是关于如何打篮球的。
AI is bringing more help to the art world as a useful tool.
人工智能作为一种有用的工具，正在为艺术世界提供更多的帮助。
I want to be an English teacher because English is a useful language.
我想成为一名英语老师，因为英语是一门有用的语言。
Peter, an honest boy, bought a useful dictionary in the store yesterday.
彼得，一个诚实的男孩，昨天在商店买了一本有用的词典。
AI can become a useful tool to bring change to the art world if it's welcomed and not unfairly feared.
如果人工智能受到欢迎而不是面对不公平的恐惧，它就可以成为一个有用的工具，给艺术界带来变化。
By learning a foreign language, we not only have a useful tool of communicating, but experience a new culture, what's more important, learning a foreign language well will help us tell our own stories to the world.
通过学习一门外语，我们不仅获得一个有用的交流工具，还能体验一种新的文化，更重要的是，学好一门外语将帮助我们向世界讲述自己的故事。
Now that's a useful use of color!
这真是色彩的一种妙用！
Is it a useful question to work on?
它是一个值得继续研究的问题吗？
猫头鹰是一种益鸟。
这是一本很实用的书。
Robot rescuers would be a useful invention.
机器人救护员也将会是项有用的发明。
That's a good hobby - and a useful one too.
这是不错的爱好——而且非常有用。
B That's a good hobby - and a useful one too.
B这是不错的爱好——而且非常有用。
I wish to invent a useful machine some day.
我希望有一天能发明一样有用的机器。
This is a useful book for beginners in English.
这是一本对英语初学者有用的书。
But though a useful tool, insurance is not a panacea.
然而，保险虽然是个有益的手段，却不是个包治百病的灵丹妙药。
But though a useful tool, insurance is not a panacea.
然而，保险虽然是个有益的手段，却不是个包治百病的灵丹妙药。
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