The cordless, hand-held tools we use in our homes, such as vacuum cleaners, flashlights, drills and saws came from the technology of these early space programs.
2017年12月四级真题（第二套）听力 Section C
英语六级真题
From self-service checkout lines at supermarket to industrial robots armed with saws and taught to carve up animal bodies in slaughter-houses, these ever-more-intelligent machines are now not just assisting workers but actually kicking them out of their jobs.
出自-2012年12月阅读原文
柯林斯高阶英汉双解学习词典释义
Saw is the past tense of see .
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A saw is a tool for cutting wood, which has a blade with sharp teeth along one edge. Some saws are pushed backwards and forwards by hand, and others are powered by electricity.