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turn on / off a light

双语例句

  1. You don't need a light switch or a light bulb or an iPhone app to turn something on or off.
    你不需要电灯开关、灯泡或苹果手机应用程序来打开或关闭某些东西。
  2. Researchers have engineered a benign virus that, when injected into the brain, makes the ion channels—the switches that turn cells on and off—responsive to light.
    研究人员在小鼠脑内注入某种良性病毒，这种病毒使细胞膜上和细胞兴奋有关的离子通道对光产生反应。
  3. For lights that turn on and off frequently, or are only on for a few minutes a day (like a light in a closet), an incandescent bulb will suffice.
    需要频繁开关或是一天只要开几分钟的地方（比如说壁橱灯），用白炽灯泡就足够了。