first downˌfɜːstˈdaʊn短语³¹⁴⁴⁷ 基本例句 第一次进攻 In wet-on-wet printing, the condition that the first down ink was unable to trap the second printing ink but part of it was taken away by the second printing ink. 在湿式叠印时，先印的油墨不但不能把第二次的印刷墨牵着，而且让第二的印刷墨把部份的先印墨拉去的情况。 cgan