Directed or moving backward; reversed; retreating.

向后的；后退的；反转的；退却的。

Going from a better to a worse state or character.

退步的；退化的。

(Planet) moving westward relative to the fixed stars.

【天】(星球)逆行的(朝恒星的西方移动的)。

To go, or appear to go, backward.

退后；逆行。

To go from better to worse.

退化；退步。