contractile例句
        The heart is a highly 
contractile organ.
心脏是具有高度收缩性的器官.
It felt very flabby, and the myocardium was poorly 
contractile.
摸上去非常软, 心肌收缩力下降.
A large portion of the cytoskeleton consists of threadlike microfilaments composed mainly of the 
contractile actin.
细胞骨架大部分由微丝组成,微丝主要由可收缩的肌动蛋白组成.