retrogrades的翻译，读音
释义：
vi. 逆行（retrograde的第三人称单数形式）
v move backward in an orbit, of celestial bodies
v move in a direction contrary to the usual one
v move back
v go back over
v get worse or fall back to a previous condition
v move backward in an orbit, of celestial bodies
v move in a direction contrary to the usual one
v move back
v go back over
v get worse or fall back to a previous condition