hard over短语⁵⁸⁵⁹¹ 基本例句 尽量靠一边 I wish to extend warm congratulations on the opening of the Forum and pay high tribute to all of you for working so hard over the years to foster friendship between China and Germany. 我谨对论坛的召开表示热烈祝贺，向长期致力于中德友好的朋友们表示崇高敬意。 topsage