vt.妨礙；遲延；拖住
vi.受到延遲
n.阻止；遲延；減速
Cold weather retards the growth of the crops. 寒冷的天氣妨礙了莊稼生長。
Lack of science and education retards social progress. 缺乏科學和教育會妨礙社會進步。
They also used it for sunburns and to retard the aging process. 他們還用它來防治日光灼傷，以及延緩衰老過程。
He keeps saying so as to retard the time. 他說個不停，以拖延時間。
用作名詞 (n.)The rearward regiments are in painful retard. 后續(xù)部隊受到令人難以忍受的阻礙。
n.智力遲鈍；阻滯
adj.智力遲鈍的；發(fā)展遲緩的
n.阻礙者；減速器；[化]遲縮劑
adj.阻燃的
