n.脆弱；不堅(jiān)定

When one or more nodes fail, the downriver nodes can't receive the packet, which makes the system frailness. 樹中的節(jié)點(diǎn)失效后其下游的節(jié)點(diǎn)將不能接收到分組，使得系統(tǒng)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(xué)家說(shuō)，不會(huì)說(shuō)不，這是人際交往中心理脆弱的表現(xiàn)，是不成熟的行為。