帮我改改语法错误!
题目
帮我改改语法错误!
Use two pieces of about 1.0mm sheet steel and place them under gear,lightly harmmer the small shaft with diameter
答案
Use two pieces of 1.0mm sheet steel and put them under gear,lightly harmmer the small shaft with diameter
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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