基本解释abbr.磅(=Libra）同根派生 lb相关词英汉例句These fish vary in weight from 3 lb to 5 lb.這些魚的重量從3磅到5磅不等。lb更多例句英英字典劍橋英英字典 written abbreviation for poundlb剑桥字典lb柯林斯字典