能不能喝：安全的那一面
這一組最貼近字面：門是開的，液體進得了口，而且進去之後不會害你。
adjective · B1
If water or another liquid is drinkable, it is clean and safe to drink, so drinking it will not make you ill.
可以安全喝的
核心畫面
One picture holds this word: a liquid you can actually put in your mouth and swallow. Drink supplies the action, and -able opens the door. From that picture the word splits along the only two questions people ask before they drink something — will this hurt me, and do I want another sip?
可以想成一個很簡單的畫面：一杯液體，你真的能把它喝下去。drink 提供動作，-able 打開那扇門，字面就是「可以…更多收起
可以想成一個很簡單的畫面：一杯液體，你真的能把它喝下去。drink 提供動作，-able 打開那扇門，字面就是「可以被喝的」。人在喝東西之前，其實只問兩件事：喝了會不會出事，還有好不好喝。drinkable 的用法剛好就沿著這兩個問題分開來：一邊回答安不安全，一邊回答順不順口。把形容詞直接當名詞用的 drinkables，則是從同一個畫面退一步，把「能喝的那些東西」整批指出來。From the word’s history
The source records drinkable in Middle English as drinkable, drynkeable, equivalent to drink + -able.
來源記錄 drinkable 在中古英文就有 drinkable、drynkeable 的寫法，組成方式是 drink 加 -able。所以「可以被喝的」不只是我們事後編出來的聯想，它本來就是這個字的拼法。
Wiktionary entry supplied in packet (kaikki:3f6f69a190036ae4:1241561398)
Two branches
好不好喝：品質的那一面
同一個畫面往前推一步：光是能吞下去還不夠，還要喝得完。於是 drinkable 從安全滑到味道。
adjective · B2
If a drink is drinkable, it tastes good enough to enjoy drinking. It is used most often about wine and beer, and also about everyday drinks such as coffee or tea, and it often means fairly good rather than excellent.
還算好喝