not to know the insidious approach of old age; not to know that old age is just around the corner
Related Translations:
至: Ⅰ介词(到) to; till; until 短语和例子自冬至夏 from winter to summer; 战斗至死 fight on till one's last breath; 截至上月底为止 up to the end of last monthⅡ副词(极; 最) extremely; most; utmost 短语和例子欢迎之至 extremely cordi
知: Ⅰ动词1.(知道) know; realize; be aware of 短语和例子强不知以为知 pretend to know what one doesn't know; 无所不知 know everything; omniscient; 知其然并力求知其所以然 know the how and endeavour to know the why; 若要人不知; 除非己