Traffic is slow on westbound I-80.

I-80号公路向西的车流行驶缓慢。

It's heading westbound now.

现在它向西去了。

He decided he'd follow the westbound road.

他决定沿着向西行的路走。

Great vortex has been swallowing all westbound ships.

大漩涡会将试图西行的船只一一吞没。

Please mind the coming train is an express train westbound.

请留意即将进站列车为全程快速列车。