Arousal is the state of being switched on inside — heart, attention, body. The meaning people often hear first, and the one the word most easily suggests, is sexual: the body getting ready for sex.

Arousal isarousal 是 the state of being switched on inside內在被「打開」的狀態——heart, attention, body心跳、注意力、身體都是。The meaning people often hear first大家最先聯想到的意思，and the one the word most easily suggests也是這個字最容易讓人想到的，is sexual是性方面的：the body getting ready for sex身體為性做好準備。

Doctors and psychology teachers also use it more widely for any move from quiet to alert (a loud noise, a scare, sudden interest). It is a formal, slightly clinical word.

Doctors and psychology teachers醫生和心理學老師 also use it more widely也把它用得更廣 for any move from quiet to alert指任何從平靜變成警覺的變化 (a loud noise, a scare, sudden interest)（一聲巨響、一場驚嚇、突然的興趣）。It is這是 a formal, slightly clinical word個正式、帶點臨床味的字。

In casual talk about sex, people are more likely to say 'turned on' or 'excited'. Though actually, if you say 'arousal' about a football match or a school prize, many listeners will still hear a sexual note, so everyday 'excitement' is safer unless you mean the body-alert sense on purpose.

In casual talk about sex在講性的日常對話裡，people are more likely to say大家比較會說 'turned on' or 'excited''turned on' 或 'excited'。Though actually不過其實，if you say 'arousal'如果你拿 'arousal' 來說 about a football match or a school prize一場足球賽或學校頒獎，many listeners will still hear很多聽的人還是會聽出 a sexual note一絲性的味道，so所以，unless you mean the body-alert sense on purpose除非你就是故意要講「身體警覺」的那個意思，everyday 'excitement' is safer不然用日常的 'excitement' 比較安全。