The road was bifurcated by a roundabout.

这条路被一个环形交叉路口分开了.

Motorists are required to slow down when approaching a roundabout.

驾驶员在接近环形路口时必须减速。

Don't accelerate when approaching a roundabout; it's safer to maintain a steady speed.

接近环形路口时不要加速，保持匀速更安全。