前缀:under-
① 表示“在…下”
underground 地下的(under+ground地)
underwrite 在…下面写(under+write写)
underline 划线于…下(under+line线,在字底下划线,引申为强调)
undersea 在海底(under+sea海)
undermine 破坏,损坏(under+mine挖→挖墙角)
underling 下属(under+ling小人物→下属)
underclothing 内衣裤(under+clothing衣服)
underwear 内衣(under+wear穿衣服)
② 表示“不足,不够”
underestimate 估计不足(under+estimate估计)
underplay 对…轻描淡写(under+play玩→没玩够→说得不够的)
underpopulated 人口稀少的(under+populated有人住的)
underdeveloped 不发达的(under+developed发展→发展不够)
undersized 不够大的(under+sized大的→不够大的)
③ 表示“副手”
underagent 副代理人(under+agent代理人)
underofficer 下级官员(under+officer官员)