您要查找的是不是：
- A useful article or device. 有用的物体或器械
- An occasional article or lecture appearance would bring him in a useful few dollars and keep his name before the public, such as it was. 偶尔写篇文章，出去讲演一次，他就可以赚到几文，又可闻达于公众。
- A machine or device for separating cream from milk. 乳脂分离器一种把乳脂从牛奶中分离出来的器具
- A damaged or defective object or device. 损坏物，缺陷物损坏的或有缺陷的物体或设备
- An article or a device, the name of which eludes one. 小玩意儿一种名称不为人所知的物品或设备
- 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。
- Article or us article of incorporation 公司章程
- A part or device that makes or breaks such a connection. 接触器造成或中断这种接触的部分或装置
- 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。
- An article or product used in a demonstration. 示范品，样品用于展示的物品或产品
- A substance or device used to induce abortion. 堕胎药，堕胎仪器用于促使流产的物质或装置
- A useful trade is amine of gold. [谚]一技在身犹如金矿在手。
- An instrument or device used to measure the skull. 头盖测量器用于测量头盖的仪器或部件
- The juice extractor is a useful household device. 榨果汁机是有用的家庭具器。
- 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。
- An article or object that is not easily broken. 牢不可破的轻易打不破的物体或目标
- The percentage of time that a circuit or device with two operational states is in the higher level or more active state. 一个有两个工作状态的电路或设备处于高电平状态或经常活动状态的时间百分比。
