1 COMB in N-COUNT （与数字连用构成名词）表示“重…磅的动物（或鱼）” -pounder can be added to numbers to form nouns that refer to animals or fish that weigh a particular number of pounds. （与数字连用构成名词）表示“重…磅的动物（或鱼）”
2 COMB in N-COUNT （与数字连用构成名词）表示“发射…磅重炮弹的大炮” -pounder can be added to numbers to form nouns that refer to guns that fire shells weighing a particular number of pounds. （与数字连用构成名词）表示“发射…磅重炮弹的大炮”