他打出的是左转信号，然后却向右转了。

He indicated left and then turned right.

《牛津词典》

等啊等，我左手边的车子都发动了，出于本能，我也跟着踩了油门，可问题是，我左手边的车是看到了左转信号灯绿了才发动的，而我的直行信号灯此刻依然是红的，而且非常红！

Thing is, while the cars to our left were reacting to a green arrow, allowing them to turn left, the light governing forward-moving traffic was still red. Very red.

youdao

在信号灯处左转。

Turn left at the signal light.

youdao