flat-seated swell

例句：

1. 1.The patient was flat-seated on the couch.
   病人平躺在沙发上。
2. 2.The baby is lying-down in its crib.
   婴儿平躺在婴儿床里。
3. 3.She lay-down on the grass and enjoyed the cool breeze.
   她躺在草地上，享受着凉爽的微风。