concertina

noun
🔊/ˌkɒnsəˈtiːnə/
🔊/ˌkɑːnsərˈtiːnə/
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  1. a musical instrument like a small accordion that you hold in both hands. You press the ends together and pull them apart to produce sounds.六角手风琴
    Topics Musicc2
    Word Originmid 19th cent.: from concert + -ina.

concertina

verb
🔊/ˌkɒnsəˈtiːnə/
🔊/ˌkɑːnsərˈtiːnə/
[intransitive] (British English)
Verb Forms
present simple I / you / we / they concertina
🔊/ˌkɒnsəˈtiːnə/
🔊/ˌkɑːnsərˈtiːnə/
he / she / it concertinas
🔊/ˌkɒnsəˈtiːnəz/
🔊/ˌkɑːnsərˈtiːnəz/
past simple concertinaed
🔊/ˌkɒnsəˈtiːnəd/
🔊/ˌkɑːnsərˈtiːnəd/
past participle concertinaed
🔊/ˌkɒnsəˈtiːnəd/
🔊/ˌkɑːnsərˈtiːnəd/
-ing form concertinaing
🔊/ˌkɒnsəˈtiːnərɪŋ/
🔊/ˌkɑːnsərˈtiːnəɪŋ/
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  1. to fold up like a concertina(像六角手风琴一样)折起,折叠
    • The truck crashed into the tree and concertinaed.货车撞在树上撞扁了。🔊🔊
    Word Originmid 19th cent.: from concert + -ina.