Practicability is the noun for how possible it is to actually do a plan in a real situation, with the time, money, people, and tools you have. A beautiful idea can have low practicability — it looks good on paper, but you cannot carry it out here and now.

Practicability Practicability is the noun是名詞 for how possible it is指的是有多可行 to actually do a plan in a real situation在真實情況下真的要執行一個計畫 with the time, money, people, and tools you have用你手上現有的時間、金錢、人力和工具 A beautiful idea一個很美的點子 can have low practicability可能practicability很低 it looks good on paper紙上看起來很好 but you cannot carry it out here and now但你現在這裡做不出來

Committees, engineers, and lawyers like this word; it is formal.

Committees, engineers, and lawyers委員會、工程師和律師 like this word喜歡用這個字 it is formal它是正式用語

Though actually, many students mix it with practicality. Practicality is about whether something is sensible or useful in daily life ("these shoes have more practicality"). Practicability is narrower: can we do this at all, in these conditions?

Though actually不過其實 many students許多學生 mix it with practicality會把它和practicality搞混 Practicality Practicality is about whether something is sensible or useful in daily life談的是一件事在日常生活裡是否合理或有用 ("these shoes have more practicality")像「這雙鞋比較有practicality」 Practicability Practicability is narrower範圍比較窄 can we do this at all, in these conditions問的是在這些條件下我們到底做不做得到

If a mountain rescue is not possible tonight because of the storm, that is a question of practicability, not of whether rescue is a "practical" habit.

If a mountain rescue is not possible tonight如果今晚山難救援做不到 because of the storm是因為暴風雨 that is a question of practicability那是practicability的問題 not of whether rescue is a "practical" habit而不是救援算不算一種「practical」的習慣