洋洋捌月
回答和翻译如下:站在浩瀚无垠的宇宙,看见一颗蔚蓝的星球围绕着光芒四射的太阳旋转,在这颗美丽星球的东半球,屹立着一个古老的国度。站在历史的长河中,目视这个古老民族的文化蜿蜒流淌五千年延续至今。Standing in the vast expanse of the universe, we see a blue planet revolving around the radiant sun, an ancient country standing in the eastern hemisphere of this beautiful planet. Standing in the long course of history, we see that the ancient nation's culture has been winding and flowing for 5000 years.
西夏唐古特
为你解答。I have heard a lot of good things about you (since) I came back from abroad.自从我回国以后,听到了很多有关你的好事情。解释:since表示的是从过去某个时间点延续至今,用于现在完成时。而before的意思是”在……以前“,在我回国以前的话,那就是发生在过去某个时间之前了,即”过去的过去“,那是过去完成时态,由had加过去分词构成。