copper [ˈkɒpə(r)]以下由轻松背单词网站提供
单词级别第7级基本释义n.铜;铜币;铜器;adj.铜(制)的;(紫)铜色的英英释义a reddish-brown metal used especially for making wire and coins , or the reddish brown colour of this metal参考例句The students are asked to prove the purity of copper. 要求学生们检验铜的纯度。Copper is a good medium for the conduction of heat and electricity. 铜是热和电的良导体。 推荐阅读 |