但是，很多患有动脉粥样硬化的中老年运动员对自己的病情一无所知，虽然有些症状已经出现。
But many older athletes with atherosclerosis have no idea they suffer from the condition, which often causes few symptoms.
他从来没有指导过这类运动员，对他们在力量训练上的缺乏经验一无所知。
He had never worked with comparable athletes before and had no conception of their inexperience with strength training.
他从来没有指导过这类运动员，对他们在力量训练上的缺乏经验一无所知。
He had never worked with comparable athletes before and had no conception of their inexperience with strength training.
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