| 单词 | up and down |
| 释义 | up and down(ʌp ənd daʊn) adverb 1. backwards and forwards (along) You walk up and down in front of the line-up. preposition 2. backwards and forwards (along) Gail looked up and down the narrow roadway. up-and-downadjective 1. moving, executed, or formed alternately upwards and downwards 2. mainly US very steep; vertical adverb, preposition up and down 3. backwards and forwards (along) |
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