a back-and-forth motion的用法和樣例:
例句
- The shuttle moves backwards and forwards through the warp.
梭子在經(jīng)線(xiàn)中來(lái)回移動(dòng)。
- The conjuror made a few passes with his hand overthe hat.
魔術(shù)師用手在帽子上方來(lái)回移動(dòng)了幾下。
a back-and-forth motion的相關(guān)資料:
臨近單詞
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