松弛的英文：
sag

参考例句：

flaccid cheeks
松弛的面颊

As a result, the skin may sag.
结果，皮肤就松弛下垂了。

a slack rope;slack muscles.
未绷紧的绳子;松弛的肌肉

The dashpot displacement relaxes exponentially
阻尼器位移按指数关系松弛。

A loose,sleeveless coat worn over outer garments;a cloak.
斗篷一种可穿在外衣外面的松弛的无袖衣服;斗篷

Heavy, slightly arched, tapering from shoulders to back of skull. No looseness of skin. Medium length.
颈部粗大，稍有弓形，自肩至脑后收缩，皮肤紧绷不松弛，中等长度。

The failure of a ring of muscle fibers,such as a sphincter of the esophagus,to relax.
弛缓不能指肌肉纤维不能松弛，如食管内的括约肌

a lax cord
一条松弛的绳子

Sit down and relax!
坐下来松弛一下。

The state or quality of being lax.
松弛的状态或性质

sag是什么意思：
v. （使）下垂；下降；消沉
n. 松弛；下跌

Price has sagged.
价格已下降。

His spirits sagged after that strike.
受到打击后他有点萎靡不振了。

He is heavily built, but beginning to sag.
他体形健壮，但肌肉已经开始松弛。

They failed to revive her sagging spirits.
他们未能让她从萎靡消沉中振作起来。

The consequence is that sagging home prices remain a drag on the economy.
由此造成的后果，就是房价不振仍在对经济造成拖累。