up-down

 
['ʌpd'aʊn]     ['ʌpd'aʊn]    
  • adj. 升降

up-down的用法和样例:

例句

用作形容词 (adj.)
  1. Window cleaners are pulled up and down tall buildings on cradles.
    窗户清洁工乘坐能升降的吊篮清洗高层建筑物的窗子。
  2. The Looper Thread Take-up can make it up and down for threading easy.
    升降式底线分线盘,使穿线更容易。

up-down的相关资料:

临近单词

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