The microwave beeps to let you know when it has finished.
微波炉烹饪完毕时会发出哔哔声提醒你。
《牛津词典》
They felt sleepy when exposed to regular beeps.
当听到有规律的蜂鸣声时，他们会感到困倦。
If the robot is unsure whether an animal is suitable for the microwave, it has the opportunity to stop, sent out beeps, and ask for directions from a human.
