vt.妨碍；迟延；拖住
vi.受到延迟
n.阻止；迟延；减速
Cold weather retards the growth of the crops. 寒冷的天气妨碍了庄稼生长。
Lack of science and education retards social progress. 缺乏科学和教育会妨碍社会进步。
They also used it for sunburns and to retard the aging process. 他们还用它来防治日光灼伤，以及延缓衰老过程。
He keeps saying so as to retard the time. 他说个不停，以拖延时间。
用作名词 (n.)The rearward regiments are in painful retard. 后续部队受到令人难以忍受的阻碍。
n.智力迟钝；阻滞
adj.智力迟钝的；发展迟缓的
n.阻碍者；减速器；[化]迟缩剂
adj.阻燃的
