腿软 meaning in Chinese

debility of the legs
feebleness of the knees

His legs were so weak that he could hardly stand .
他腿软得几乎站不住了。
Arsenicals have been shown to produce severe leg weakness in ducks .
现已证明，砷剂可使鸭产生严重的腿软。
Finally fell to the ground , alights from a plane the time feeling leg is a little soft , although arrived , but cannot be happy too early
终于落地了，下飞机的时候感觉有点腿软，虽然到了，但是还不能高兴得太早。
Albert opened the letter with fear , uttered a shriek on reading the first line , and seized the paper . his sight was dimmed , his legs sank under him , and he would have fallen had not florentin supported him
突然地，他的眼睛变得黯然无神了，他的腿软了下去，要不是弗劳兰丁扶住他，他就要跌在地上了。
He returned thus , formidable and implacable , advancing with his arms crossed on his breast , towards the general , who could not understand why he had disappeared , but who on seeing him again , and feeling his teeth chatter and his legs sink under him , drew back , and only stopped when he found a table to support his clinched hand
他就这样回来，把双手叉在胸前，带着仇深似海的表情气势汹汹地向将军走过去。将军最初不懂他为什么忽然不见，但当再见到他的时候，他的全身发起抖来，他的腿软了下去，他步步后退，直到找到一张桌子支撑住身体才停住。