机车通常会利用降档或是降低油门开度来减速，这些时候刹车灯是不会亮起的。

Motorcyclists often slow by downshifting or merely rolling off the throttle, thus not activating the brake light.

youdao

机车通常会利用降档或是降低油门开度来减速，这些时候刹车灯是不会亮起的。

Motorcyclists often slow by downshifting or merely rolling off the throttle, thus not activating the brake light.

youdao