He sat down in the middle of the yin-yang symbol, his legs curled under him.

他在阴阳符中间坐下，双腿盘曲在身下。

I sleep with my one leg straight, and my other leg curled up, so it's kind of like a fetal position, except the one leg is extended and the arms can be any way you want them.

我睡觉时一条腿伸直， 另一条腿蜷缩，所以这有点像胎儿的姿势， 除了一条腿是伸展的， 手臂可以随心所欲。