谢谢你用心码了这么多恩 明天好好看看
刚刷错题的时候 又发现一个很诡异的which
OG19-781 Gusty westerly winds will continue to to usher a seasonably cool air mass into the region while a broad area of high pressure builds, which will bring fair and dry weather for several days.
翻了翻论坛说这里which又指代了pressure···· 光句意来看我还觉得他能指导cool air呢····