她是壳牌公司法律事务部唯一的女性。She was the only woman in Shell's legal department.我们之间唯一的差别就是肤色。The only difference between us is the colour of our skins.我的猫古斯塔夫是我所有的一切——我唯一的伴侣。My cat Gustaf was the only thing I had—the only comp...
The causes of tarnishing gold and silver - plated connectors were studied respectively.分别探讨了接插件镀金和镀银层变色的原因.Bright tin electrodeposits on copper wire are susceptible to tarnishing.铜线材经光亮镀锡后易产生腐蚀变色.Do they not realize thei...