青年中文up down up up down的意思
up down up up down中文翻譯：
向上向下向上向下
雙語使用場景
The results showed that, during the process of fruit growth and development, the total sugar content appeared the "up-down-up" trend and the total acid content was the "up-down" trend.───結果表明，在果實生長發育過程中，總糖含量呈“上升-下降-上升”的趨勢；
They've got to come up, warm, get that solar power, and then plunge back into the depths, and go up and down and up and down.───它們必須上升，尋找溫暖，獲得太陽能，然后它們再下降到深處，然后上升，下降，上上下下。
Brands are always moving-up, up, up or down, down, down.───品牌總是在不斷變化的——總有景氣和不景氣的時候。