Two Pounds of Plums

Mother: I sent my little boy for two pounds of plums and you gave him a pound and a half.
Shopkeeper: My scales are all right, madam. Have you weighed your little boy?

两磅李子

母亲：我让我的小儿子来买二磅李子，可你只给了他一磅半。
店主：我的秤准确无误，太太。可是你称过你的小儿子了吗？