Want to establish refreshing signpost sign in the highway crossing street corner, steep gradient and flexure pass.

在公路交叉路口、陡坡、弯道要设置醒目的路牌标志。

youdao

Want to establish refreshing signpost sign in the highway crossing street corner, steep gradient and flexure pass.

在公路交叉路口、陡坡、弯道要设置醒目的路牌标志。

youdao