| 单词 | 并集 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔IMPROVE〕Apple is going to streamline its operations and concentrate development efforts on the Internet and multimedia. 苹果公司打算简化其业务并集中开发互联网和多媒体技术。朗文写作活用〔reflecting telescope〕A telescope in which light from the object is gathered and focused by a concave mirror, with the resulting image magnified by the eyepiece.反射式望远镜：一种物体的光被凹面镜收集并集中的望远镜，所成图像被目镜放大美国传统〔union〕Mathematics A set, every member of which is an element of one or another of two or more given sets.【数学】 并，并集：一个集合，它的每一要素是两个或更多给定集合中的一个或另一个的要素美国传统〔warm up〕It helps me to warm up before I go onstage, and to centre myself.这有助于我在上台前做好准备并集中注意力。外研社新世纪Rival firms are interested in picking off parts of the group.对手企业有意吞并集团的一部分。牛津商务 |
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