westward

向西、朝西

The river flows westward for about thirty kilometers.

这条河向西流约三十公里。

向西的、西行的

Their westward journey took almost three months.

他们西行的旅程花了将近三个月。

西方、西边较少用

Dark clouds gathered to the westward of the harbor.

乌云聚集在港口西边。