westbound
adjective, adverb uk/ˈwest.baʊnd/ us/ˈwest.baʊnd/
向西方（的），西行的（地）
going or leading towards the west
The accident occurred on the westbound carriageway of the motorway. 事故发生在高速公路西行的一侧。
We crossed six time zones westbound on our flight. 我们乘飞机向西穿过6个时区。
Compare: westward adjectivewesterly adjective