often changing; likely to change经常变化的；多变的◆variable rates of interest变动利率◆The images are of variable quality (= some are good, some bad).这些图像质量参差不齐。able to be changed可变的◆a tool with variable speed control带有变速控制装置的工具◆If you experience seasonal demand, variable pricing might help (= charging different prices at different times).如果遇到季节性需求，可变定价法可能会有帮助。  ➡  adjustable