a course on developing presentational skills展示技巧训练课程Further to your letter, I agree that there are some presentational problems, politically speaking.正如贵方信中所提到的，我也认为从政治角度来说，有一些词语表意上的问题。In a 4 th study, authors investigat...
Between these ocean - filled valleys, there are wooden peninsulas and islands.海水灌满的山谷中间, 有许多树木葱茏的半岛和岛屿....erosion of the river valleys.河谷的侵蚀Glaciers gouged out valleys from the hills.冰川把丘陵地带冲出一条条山谷.Farmers worked the fer...