n.脆弱；意志薄弱；虛弱；弱點
The love stories that touch us most deeply are punctuated by human frailty. 最深深打動我們的那些愛情故事總是打滿了人性脆弱的洞孔。
Despite his age and frailty, he did not die. 盡管他年老虛弱，但他沒有死。
One of the frailties of human nature is laziness. 人性的弱點之一是懶惰。
