Keep track the history of the keyword to determine when a keyword is rising or down in popularity over time.
The fun and well-photographed interview in Softalk in 1983 starts like this:
。业内人士推荐雷电模拟器官方版本下载作为进阶阅读
What to look for in an ergonomic keyboard
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The performance impact on typical applications will be much smaller, since they don’t usually present walls of icons in their UI.