【useful音标】 英[ˈju:sfl] 美[ˈju:sfl]
【单词释义】 useful是什么意思：
adj.有用的，有益的，有帮助的；令人满意的
[单词分级] 中考英语词汇
【关联词/派生词】
use n.[ju:s]使用；用途 v.[ju:z]使用；运用
used adj.[ju:zd]用过的；旧的。[ju:st]习惯于；适应
user n.用户，使用者
usage n.用法；使用，用量；惯用法
useless adj.无用的，无效的；无价值的
usefully adv. 有效地，有用地
username n. 用户名
usable adj. 能用的；适用的；可用的
usability n. [U]可用性；合用，可用
【单词例句】
◇ The pea-blossom pleased him most of all; she was white and red, graceful and slender, and belonged to those domestic maidens who have a pretty appearance, and can yet be useful in the kitchen.
豌豆花最逗人爱：她有红有白，既娴雅，又柔嫩。她是家庭观念很强的妇女，外表既漂亮，在厨房里也很能干。
---- The Butterfly
◇ With a greedy motivation of making big money, I took up working as a business representative for the G.E Ecology Company, which produced goods by recycling useful materials from our dustbins.
带着想挣大钱的贪婪动机，我开始给一家叫G.E生态公司的企业当商务代表，这家公司通过回收我们垃圾箱里的有用材料生产商品。
---- An Air Crash
◇ Shao Zhonglin, former deputy secretary-general of the China Express Association, noted they were useful "over a short range".
中国快递协会原副秘书长邵钟林说，它们在“短距离内”是有用处的。
---- 'Little yellow horse' robot delivers useful service in China
◇ We have in our hands the technology to construct the most sophisticated machines ever built,but if they are unusable,simply because of their operating instructions,then recent lessons have taught us they will not survive.Whatever we design must be simple,reliable and useful.Perhaps this is where artificial intelligence will come in.
我们要用手中的技术建造最精密的机器。最近的事实告诉我们，如果仅仅因为操作指令而不能使用，那么它们将不能存在。无论如何，我们的设计必须简单、可靠且实用。这也许就是人工智能的来源。