The tourist office operates a useful room-finding service.
这个旅游办事处开办了实用的找房业务。
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。
His no-inflation bill serves as a useful counterweight to proposals less acceptable to the committee.
相对于那些不太为该委员会接受的议案来说，他的无通货膨胀法案可作为一个有益平衡。
This accident affords us a useful lesson.
这个事故为我们提供了有益的教训。
"They provide a useful service," said Flack.
弗拉克说：“他们提供有用的服务。”
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。
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。
Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomplete, statistic.
不幸的是，这一结论对这个有用但有缺陷、不完整的统计数字给予了过多的重视。
They can provide a useful overview—an aerial map, as it were, to familiarize you with the main landscape features to be encountered during a course.
它们可以提供一个有用的概览——一个航拍图，可以让你熟悉课程中遇到的主要景观特征。
As Professor O'Keefe pointed out, "This research provides a useful direction for organizations whose products and services call for integrated and creative solutions."
正如奥基夫教授所指出的：“这项研究为那些产品和服务需要完整综合的、创造性解决方案的组织提供了一个有用的方向。”
Videoing students can be a useful teaching exercise.
给学生录像可以成为有用的教学活动。
The figures are a useful guideline when buying a house.
买房时这些数据很有参考价值。
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。
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。
This exercise can be quite a useful icebreaker for new groups.
该练习可为新小组彼此对话打破僵局。
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。
Geography is a useful subject.
地理是门有用的科目。
这是一种有用的放松方式。
What a useful dictionary this is!
这是一本多么有用的字典啊！
It's a useful tool on rainy days.
这在下雨天是一个很有用的工具。
He is going to buy a useful book.
他打算买一本有用的书。
这是一条有用的建议。
这是一条有用的建议。
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