flaccid

音标发音

Although the airship starts off flaccid, the helium and the ethane expand as it gains altitude.
尽管飞船松弛着就起飞了，氮气和乙烷随着海拔的增长逐渐膨胀变大。
Globally, polio surveillance is at historical highs, as represented by the timely detection of cases of acute flaccid paralysis.
就全球而言，从及时发现急性弛缓性麻痹病例可以看出，脊灰监测工作已达到历史最高水平。
On 4 April WHO Yemen was informed by Hudeida governorate health authorities of a cluster of acute flaccid paralysis (AFP) cases in children, the first cases of which had occurred in February 2005.
4月4日，荷台达省卫生部门向世卫组织驻也门办事处通报了儿童中急性弛缓性麻痹病例的群集，这是2005年2月发生的第一批病例。

Perhaps it was nothing more than an effect of the light, but his face looked heartbreakingly flaccid, white like the underside of a crab.
NEWYORKER: Sweetheart Sorrow
The truth is, the democratic world has become a bit flaccid and is in a more forgiving mood than it was a decade ago.
CENTERFORSECURITYPOLICY: Center For Security Policy
Shaggy shoulders, flaccid arms, pendulous gut: what made him so strong?
NEWYORKER: The Strongest Man in the World

You use flaccid to describe a part of someone's body when it is unpleasantly soft and not hard or firm.