解释一下句子和短语的含义1.The old lady hit the thief over the head with a candlestick and now he is unconscious.用knock out 替换 unconsciousover the head candlestick的意思还有整个句子的意思2.The shopkeeper reduced the price of all his goods by 20%.解释句子含义,用knock off替换reduced并说说原因还有shopkeeper的意思,goods 对不起，非诚勿扰。

解释一下句子和短语的含义
1.The old lady hit the thief over the head with a candlestick and now he is unconscious.
用knock out 替换 unconscious
over the head candlestick的意思
还有整个句子的意思
2.The shopkeeper reduced the price of all his goods by 20%.
解释句子含义,用knock off替换reduced
并说说原因
还有shopkeeper的意思,goods
对不起，非诚勿扰。