A fine - grained, light - colored granitic rock consisting primarily of orthoclase and quartz.一种由铁锰钨酸盐组成的矿物, 晶体状,主要的钨矿石,见于与花岗岩伴生的石英脉中.A usually coarse - grained igneous rock composed chiefly of calcic plagioclase and pyr...
As the boat plodded into British waters and up the English Channel, Customs had their eye on her.那艘船缓慢驶入英国水域，沿英吉利海峡向北时，海关一直密切关注着它。Did you have to pay customs duty on that?你们必须为此给顾客付款 吗 ?...components similar to those sei...