作为一个经验丰富的魔术师，刘谦对魔术表演有着独特的理解。
As a seasoned magician, Liu Qian has a unique understanding of showmanship.
刘黄沟流域内具有丰富的土砂石块和陕峻的地形，又遇有暴雨，是发生泥石流的原因。
The plenty of loose solid materials, precipitous slopes, and the freguenf rain storms, are the main reasons for the formation of the debris flow in the valley.
刘玉华在视光学领域具有雄厚的理论和丰富的临床实践。
She has profound theory and rich experience in the field of Optometry .
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