westwards

a track leads westwards through the glen.

一条通过峡谷西延伸的通道。

During the observation moment both stars were situated westwards from the Sun, the ecliptical longitude difference of the Sun and star X was equal to 100°.

在观测到时刻，两颗星都在太阳的西面，X星和太阳间的黄经为100度。