has是动词。has是have的第三人称单数现在时形式。例句This is a clear demonstration of how technology has changed（这清楚地表明了技术已有了怎样的进步）。
has的`例句There has already been a definite improvement（已经有了显著的改进）；The conflict with James has dragged on for two years（与詹姆斯的冲突拖了两年）。
水利万物而不争,
而万物莫能与之争。
