娃問我moat的深度一般是多少，搜了谷歌找到民間有人回復(fù)如下：In my opinion, it depends on how deep the owner of the castle would like to dig. Since the main function of moat is for defense of the castle, it should be really very deep. Castle moats were usually between 5 and 40 feet deep, and not all the time they were filled with water. A simple dry, wide ditch could prove an obstacle to invade or climb over a castle. These were called dry moats. In many stories, moats are filled with alligators or crocodiles. This is a myth. However sometimes people would keep fishes or eels in the moat as source of meat.
2015
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