fluc·tu·ate /ˈflʌktjʊeɪt/ vi. | vt. ❶ vi. 1. 波动，涨落，起伏 You can't march in a straight line to the victory; you fluctuate to it. 你不可能一帆风顺地走向胜利，而要经过许多波折才能达到。 The demand fluctuates seasonally. 需求随季节而变动。 2. 动摇不定 fluctuate between staying or leaving 拿不定主意是留下还是离去 ❷ vt. 使波动，使涨落，使起伏；使不稳定；使动摇不定 [<L flūctuāre< fluctus wave<fluere to flow]