To perturb someone is to make them worried or unsettled about something that has happened, or that may happen. The feeling is not always huge panic; it is more that their calm has been knocked.

To perturb someoneperturb一個人 is to make them worried or unsettled就是讓他們感到擔心或不安，about something that has happened對於已經發生的事，or that may happen或可能發生的事。The feeling is not always huge panic這種感覺不一定是巨大的恐慌；it is more that their calm has been knocked比較像是他們的平靜被打亂了。

The verb is rather formal. A parent might say the news perturbed her; a teenager would more often say it freaked me out, it worried me, or it threw me.

The verb is rather formal這個動詞相當正式。A parent might say家長可能會說 the news perturbed her這消息perturbed她；a teenager would more often say但青少年比較常說 it freaked me out「嚇死我了」、it worried me「讓我很擔心」、or it threw me或「讓我措手不及」。

People also stretch the word in science and maths: to perturb a system is to give it a small push that knocks it off its usual path, as when a planet’s orbit is slightly changed. In that use nobody needs to feel frightened; the system is just disturbed.

People also stretch the word in science and maths大家也會把這個字延伸用在科學和數學裡：to perturb a systemperturb一個系統 is to give it a small push就是給它一個小小的推力，that knocks it off its usual path讓它偏離原本的路徑，as when a planet's orbit is slightly changed就像行星的軌道被稍微改變一樣。In that use nobody needs to feel frightened在這種用法裡沒有人需要感到害怕；the system is just disturbed系統只是被擾動了。

The everyday human sense and the science sense share the same picture: something that was steady is stirred.

The everyday human sense and the science sense日常對人用的意思和科學上的意思 share the same picture有著相同的畫面：something that was steady is stirred原本穩定的東西被攪動了。