perturb

verb

/pəˈtɜːb/

/pərˈtɜːrb/

(formal)

Verb Forms

present simple I / you / we / they perturb	/pəˈtɜːb/ /pərˈtɜːrb/
he / she / it perturbs	/pəˈtɜːbz/ /pərˈtɜːrbz/
past simple perturbed	/pəˈtɜːbd/ /pərˈtɜːrbd/
past participle perturbed	/pəˈtɜːbd/ /pərˈtɜːrbd/
-ing form perturbing	/pəˈtɜːbɪŋ/ /pərˈtɜːrbɪŋ/

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perturb somebody to make somebody worried or anxious使焦虑；使不安 synonym alarm
- Her sudden appearance did not seem to perturb him in the least.她的突然出现似乎一点也没有令他不安。
- I was perturbed by his lack of interest.我对他缺乏兴趣感到不安。
Word Originlate Middle English: from Old French pertourber, from Latin perturbare, from per- ‘completely’ + turbare ‘disturb’.

TOEFL IELTS BNC: 18847 COCA: 21889