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有许多小发明 ,人类已经广泛使用了几十年甚至几百年 ,而且还会使用下去。这说明 ,这些小发明 ,是伟大的伟大的小发明
There are many small inventions that humans have been using for decades, or even hundreds of years, and will be used. This shows that these little inventions are great great inventions