(verb.) go back over; 'retrograde arguments'.
(verb.) move back; 'The glacier retrogrades'.
(verb.) move in a direction contrary to the usual one; 'retrograding planets'.
(verb.) move backward in an orbit, of celestial bodies.
(adj.) of amnesia; affecting time immediately preceding trauma .
(adj.) moving from east to west on the celestial sphere; or--for planets--around the sun in a direction opposite to that of the Earth .
(adj.) going from better to worse .
伯特伦编辑
吉恩编辑