@jklmd123 @JoannaInNY_MPH @thane_black @UCSF It's the "normalcy" siren I think. People aren't going out or eating indoors any more than before, they're just unwilling to accept change, and of course it is with constant encouragement to take this approach.
@jklmd123@Joannanny\u MPH@thane\u black@加州大学旧金山分校我认为这是“正常”的警笛声。人们不再外出或在室内就餐，他们只是不愿意接受变化，当然，采取这种做法是受到不断鼓励的。