是有效期的意思。 通 储蓄卡 和信用卡在卡面上有一个比较重大的区别就是，信用卡上印有有效期，通常格式为：valid from 12/08，valid thru 12/11。表示这张信用卡的有效期. 双语例句： 1、he made a very thorough analysis on the situation。 译文：他对形势的分析很透彻。 2、this article describes a performance analysis on the aix platform。 译文：本文描述了. Thought 是 think 的过去式，意思是：想、思考。 through 的意思是：通过；穿过。 though 的意思是：虽然；尽管。 可以跟although一起记，同个意思。 tough 的意思是：艰苦.
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They made a thorough mess of trying to organize a party. 2.a thorough solution to the problem. Last year's cotton crop was an unmitigated disaster.
如下： though副词，“尽管，虽然”，记住不能与but连用eg.though it is raining now, i will go there.
