the state of being weak in health or body (especially from old age)
造句
用作名詞(n.)
When one or more nodes fail, the downriver nodes can\\\'t receive the packet, which makes the system frailness. 樹中的節點失效后其下游的節點將不能接收到分組，使得系統變得脆弱。
Psychologists say someone who never says no shows his phenomenon of psychological frailness in interpersonal interaction, which is an immature behavior. 心理學家說，不會說不，這是人際交往中心理脆弱的表現，是不成熟的行為。