When a journalist suggested that the vast wealth of one of Twain's friends, a Standard Oil executive, was "tainted," Twain replied, "It's doubly tainted-t 'aint yours and t 'aint mine."
马克·吐温有个朋友是美孚石油公司的高级管理人员，曾有一个记者暗示，这个朋友的万贯家财很“黑”，吐温回答说：“这是黑了又黑，黑了你的又黑我的。”
Thus, said Garcia, the body's vast repertoire of T cell receptors has evolved a "memory" of the MHC molecules that recognize foreign as well as self proteins.
因此Garcia说，人体T细胞受体的巨大潜能进化出对MHC分子的一种“记忆”，不但识别自体蛋白也识别异体蛋白。
Mongolia is covered with vast plains, so it's dusty there. The floor is always dusty and people here use T-shaped wooden mop stick with rag to mop the floor.
而在蒙古到处都是大草原，风沙大，所以地板上总是沙沙的，在这儿人们总是用T字型的木拖把柄垫著抹布来擦地。
Mongolia is covered with vast plains, so it's dusty there. The floor is always dusty and people here use T-shaped wooden mop stick with rag to mop the floor.
而在蒙古到处都是大草原，风沙大，所以地板上总是沙沙的，在这儿人们总是用T字型的木拖把柄垫著抹布来擦地。
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