如果要转弯，应该打转向灯示意。

If you're going to turn you're supposed to signal.

开始掉头前打开你的左转向灯。

Turn on your left signal before starting to turn.

在接近交叉路口时打转向灯示意左转。

Indicate left as you approach the junction.

在转 弯之前至少100码就应该打转向灯。

You must turn on your turn signal at least 100 feet before the turn.

如果没有救助，打开你的危险警告灯或转向灯。

If not, turn on your hazard warning lights or turn signal.