A sadist is a person who enjoys hurting other people, or making them suffer. The hurt can be of the body, or of the feelings — saying cruel things on purpose, for example.

A sadist虐待狂 is a person who enjoys hurting other people, or making them suffer是喜歡傷害別人、或讓別人受苦的人。The hurt這種傷害 can be of the body可能是身體上的，or of the feelings或是情感上的 — saying cruel things on purpose, for example例如故意說些殘忍的話。

In serious talk, this is a dark word: someone who really gets pleasure from another person’s pain.

In serious talk認真來說，this is a dark word這是個很陰暗的詞：someone who really gets pleasure from another person's pain指真的會從別人的痛苦中得到快感的人。

Though actually, people also use it loosely, almost as a joke: “You’re a sadist!” when a teacher gives too much homework, or a coach makes the team run again. That stretch is common, but it is milder than the full meaning.

Though actually不過其實，people also use it loosely, almost as a joke大家也會比較隨便地用這個字、近乎開玩笑：when a teacher gives too much homework, or a coach makes the team run again像老師功課出太多、或教練又叫球隊重跑一次時，“You're a sadist!”就是「你根本是虐待狂！」。That stretch這種延伸用法 is common很常見，but it is milder than the full meaning但比完整的意思來得輕。

The word comes from the Marquis de Sade, a French writer from a long time ago, whose stories were full of cruelty. You do not need his name to use the word, but that is where it started.

The word這個字 comes from源自 the Marquis de Sade薩德侯爵，a French writer from a long time ago一位很久以前的法國作家，whose stories were full of cruelty他的故事裡充滿殘忍情節。You do not need his name你不需要知道他的名字 to use the word也能用這個字，but that is where it started但這就是這個字的起源。

It is a strong label; calling someone a sadist in earnest is an accusation, not a light remark.

It is a strong label這是個很重的標籤；calling someone a sadist in earnest認真地說某人是虐待狂 is an accusation是一種指控，not a light remark而不是隨口說說。