re.tar.dantadj.(形容词)Acting or tending to retard. Often used in combination:起阻滞作用的,阻止性的:阻止的行为的或倾向于阻止的。常用于复合词:例句:flame-retardant pajamas for children; a fire-retardant security chest.孩子们的阻燃睡衣;阻燃安全箱【引伸】retar.dantn.(名词)