母亲:我让小儿子来买两磅李子,可你只给他一磅半。
店主:我们的秤准确无误,太太。您秤过您的小儿子了吗?
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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?