A big mark with an uneven, unplanned shape — ink on a page, coffee on a table, paint on a floor. It is the American everyday word for what British speakers often call a splodge, and the two mean the same thing. It also works as a verb: to splotch something is to put those marks on it. A splotch is bigger and messier than a spot or a dot; a spot is small and can be neat, while a splotch spreads. People use it for colour on skin too — after crying, a face can be splotched with red — and for anything patchy: a lawn with splotches of brown, a photo with splotches of light. The feeling of the word is not disgust but untidiness. There is a related adjective, splotchy, which you will hear more often than the noun in daily speech.

污漬、色塊（大而形狀不規則的一塊，美式用法；英式多說 splodge）