明亮的LED指示灯显示继电器状态和信号强度。

Bright LED indicators show relay status and signal strength.

youdao

放天灯表示进攻的信号吗？

Did they set them off as a signal to attack?

youdao

在大雨中，我几乎分辨不出交通灯的信号。

I could barely make out the traffic signs through the rain.

youdao

在大雨中，我几乎分辨不出交通灯的信号。

I could barely make out the traffic signs through the rain.

youdao