Heuristics is the study of how people use what they already know — their experience — to find answers or to do better, without checking every possible path.

HeuristicsHeuristics is the study of how people use what they already know是研究人們如何運用自己已經知道的東西——their experience也就是經驗——to find answers or to do better來找答案或把事情做得更好，without checking every possible path而不用檢查每一種可能的路徑。

A single shortcut of that kind is a heuristic: a rough rule that is often good enough, like “if the milk smells sour, do not drink it.” You meet the word in psychology (the quick tricks our minds use), in teaching, and in computer work (a program that hunts for a fair answer when a perfect one would take too long).

A single shortcut of that kind這樣的一個捷徑 is a heuristic就叫做a heuristic：a rough rule that is often good enough一條通常已經夠用的粗略規則，like "if the milk smells sour, do not drink it."就像「如果牛奶聞起來酸了，就不要喝」。You meet the word你會 in psychology在心理學（the quick tricks our minds use指我們大腦使用的快速技巧）、in teaching在教學、and in computer work以及電腦領域（a program that hunts for a fair answer when a perfect one would take too long像是當完美答案要花太久時，去找一個還算不錯答案的程式）裡遇到這個字。

Though actually, everyday English almost never says heuristics outside class, tech, or research; in the street people say a rule of thumb or a guess based on experience.

Though actually不過其實，everyday English日常英文 almost never says heuristics幾乎不會說heuristics outside class, tech, or research除非是在課堂、科技、或研究領域；in the street在街頭 people say a rule of thumb or a guess based on experience人們會說a rule of thumb（經驗法則）或根據經驗的猜測。

The final s is part of the usual name for the idea, like mathematics — it does not always mean “more than one heuristic,” though it can.

The final s字尾的s is part of the usual name for the idea是這個概念常用名稱的一部分，like mathematics就像mathematics一樣——it does not always mean "more than one heuristic,"不一定是指「不只一個heuristic」，though it can雖然也可以是那個意思。