Drivers can avoid danger by being careful and alert all the time.

只要一直警惕，小心，司机可以避免危险。

So, they will alert you all the time, also if lighting conditions change and it can be very annoying.

因此它们只会不断地报警，甚至连照明条件变化时也是如此，非常讨人厌。

" We're very transparent in our use of the unmanned aircraft. We alert the public every time we use it and where we're using it."

“我们在使用无人机方面十分透明。每次使用无人机，警方都会告知公众使用的时间与地点。”