If a place is habitable, people could actually live there: there is air, water, a way not to freeze or burn, and the building or land is not falling apart or full of poison.

If如果 a place一個地方 is habitable是適宜居住的，people人 could actually live there真的可以住在那裡：there is air, water有空氣、有水，a way not to freeze or burn有辦法不會凍死或熱死，and而且 the building or land建築物或土地 is not falling apart or full of poison沒有搖搖欲墜、也沒有充滿毒素。

It is a careful, slightly formal word. You use it for houses after a fire, for ships, for islands, for planets — anywhere the real question is “could a person stay alive here?”, not “is it nice?” Scientists talk about a habitable planet meaning a world that might be gentle enough for life, not just dead rock. “Barely habitable” is a common stretch: yes, you could live there, but you would not want to.

It這個字 is是 a careful, slightly formal word一個用詞謹慎、有點正式的字。You你 use it會用這個字 for houses after a fire來形容火災後的房子、for ships船、for islands島、for planets星球——anywhere the real question is在任何真正的問題是 "could a person stay alive here?"「人能不能在這裡活下去？」not而不是 "is it nice?"「這裡好不好」的地方。Scientists科學家 talk about a habitable planet談到適宜居住的星球時 meaning意思是指 a world that might be gentle enough for life一個可能溫和到足以孕育生命的世界，not just dead rock而不只是一塊死石頭。"Barely habitable"「勉強適宜居住」 is a common stretch是常見的引申用法：yes, you could live there是的，你可以住在那裡，but you would not want to但你不會想住。

You would not call a café habitable; that is the wrong size of problem.

You你 would not call不會說 a café一家咖啡廳 habitable是「適宜居住的」；that那 is是 the wrong size of problem問錯了尺度的問題。