n.脆弱；意志薄弱；虚弱；弱点
The love stories that touch us most deeply are punctuated by human frailty. 最深深打动我们的那些爱情故事总是打满了人性脆弱的洞孔。
Despite his age and frailty, he did not die. 尽管他年老虚弱，但他没有死。
One of the frailties of human nature is laziness. 人性的弱点之一是懒惰。
