| 正面 | fluctuate |
|---|---|
| 背面 | 【考法1】vi.波动，无规则地变动: to shift back and forth uncertainly 【例】Stock prices fluctuate wildly股票价格大幅波动 Samples of ice cores collected from Antarctica suggested that the atmospheric concentration of carbon dioxide has been fluctuating periodically 南极冰芯样本表明，大 气中的二氧化碳浓度存在周期性的涨落 【近】mutate, shift, swing, oscillate, vacillate, vary, waver 【反】stabilize保持稳定；plateau 到达稳定状态 【派】fluctuation n涨落，波动 |
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