用英语怎么说weak

Weak 是英文单词，在中文中意思是 "虚弱"。它来自英语单词 weak，最早源自古英语单词 weac，意思是 "软弱"。
例句：
He was weak from lack of food and water. 他因缺乏食物和水而虚弱。
She had a weak heart and couldn't do much physical activity. 她的心脏虚弱，不能做太多的体育锻炼。
The economy is showing signs of weakness. 经济出现了虚弱的迹象。