well up in
精通
例句与用法：
Tears welled up in her eyes.
泪水涌上她的眼眶。
He's well up in all the latest developments in the industry.
他很熟悉这个行业中所有的最新情况。
well up in
精通
例句与用法：
Tears welled up in her eyes.
泪水涌上她的眼眶。
He's well up in all the latest developments in the industry.
他很熟悉这个行业中所有的最新情况。