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1.The two-motion selector on the remote controls allows you to adjust the volume and mute the sound.
遥控器上的双动选择器允许你调整音量并静音声音。
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2. The two-motion selector is a convenient feature that allows you to quickly switch between channels without having to manually press buttons.
双动选择器是一个方便的功能，它可以让你快速地在频道之间切换，而无需手动按下按钮。
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3. Inthis new model, the two-motion selector has been improved to provide better control over the device's functions.
在这个新型号中，双动选择器得到了改进，以更好地控制设备的功能。