1. The skin is softer, smoother, wrinkles decrease but are not eliminated, and marks and fine brown lines disappear.
    皮肤更柔软、更光滑，皱纹虽非全部去除但已减少，斑点和细小的棕色纹路消失。

2. "But the new exercisers who followed their normal diet showed a decrease in iron levels."
    但突然参加锻炼却仍沿用原来的食谱的人，则显示出铁离子含量的降低。"