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- A sauna in the hotel would be a useful amenity. 旅馆中的芬兰蒸汽浴室倒是个有益的好设施。
- He's a useful member of the team. 他是该队的一名强手。
- I have a useful contact in New York. 我在纽约有个有用的人可以联系。
- I've got a useful contact in the post office. 我在邮局有熟人。
- A useful trade is amine of gold. [谚]一技在身犹如金矿在手。
- Such an outfit would be a useful addition to my wardrobe. 在我的服装中添置这一套会有用的。
- The money I got was a useful supplement to my ordinary income. 我得到的那笔钱是很管用的外快。
- What she said was a useful simplification of the theory. 她把这一理论讲得深入浅出。
- It is a useful book and, what is more, not an expensive one. 这是有用的书，更难得的是不贵。
- I should recommend it as a useful reference book. 我愿意推荐它作为一本有用的参考书。
- The letters page serves as a useful forum for the exchange of readers' views. 读者来信版是读者们交换意见的有益园地。
- In this regard, the history of the Second World War provides a useful lesson. 在这一点上，第二次世界大战的历史提供了有益的教训。
- a useful bird 益鸟
- The computer is ever such a useful tool. 计算机是一种非常有用的工具。
- A sauna in the hotel will is a useful amenity. 旅馆中的芬兰蒸汽浴室倒是个有益的好设施。
- A sauna in the hotel would is a useful amenity. 旅馆中的芬兰蒸汽浴室倒是个有益的好设施.
- A sauna in the hotel will be a useful amenity. 旅馆中的芬兰蒸汽浴室倒是个有益的好设施。
- "Often people think that animals are optimised," says US bird flight researcher Bret Tobalske, a professor at the University of Portland. 为了研究蝙蝠何以能够在空中悬停，瑞典伦德大学生物学家安德斯-赫登斯特朗做了一个实验：将蝙蝠放在一个布满烟雾并装有特制摄像机的风道中。
- We derive now a useful variant of that inequality. 我们现在推导这个不等式的另一种有用形式。
- This adventure was a useful lesson. 这番周折给我上了有益的一课。
