短語詞組用作動(dòng)詞 (v.)～+介詞fluctuate according to 隨…浮動(dòng)fluctuate between 時(shí)而…fluctuate from ...to... 從…到…變化fluctuate in 在…波動(dòng)fluctuate with 隨…浮動(dòng)短語 返回 fluctuated