省一半

A smart housewife was told that there was a kind of stove which would only consume half of the coal she was burning. She was very excited, and said: "That'll be terrific! Since one stove can save half of the coal, if I buy two, no coal will be needed!"
一位精明的家庭主婦聽(tīng)人說(shuō)有一種爐子用起來(lái)可以比她現(xiàn)在用的爐子省一半的煤。她聽(tīng)了大為興奮，說(shuō)：“那太好了！一個(gè)爐子可以省一半的煤，那么如果我買兩個(gè)爐子的話，不就可以把煤全都省下來(lái)了嗎？”