1.thank sb.for sth./doing sth.                   因某事而感激某人
2.be grateful to sb.for sth.                    因某事而感激某人
3.show/express/extend/convey my sincere thanks/gratitude to sb.for sth.
                                                              向某人表达我诚挚的谢意
4.in trouble                                        陷入困境
5.make great/good progress                  取得很大的进步
6.in/during/over the past/last four years
                                                           在过去的四年里
7.be admitted to/into a university          被一所大学录取
8.say thanks to you for helping me       谢谢你帮助我
9.under your patient guidance              在你耐心的指导下
10.as time goes on/goes by/with time going on/going by
                                                           随着时间的推移
11.thanks to/owing to/because of your help
                                                           多亏了你的帮助
12.enjoy myself                                  玩得高兴
13.pay a visit to                                  去参观,拜访
14.have a better understanding of ...        对……有更好的理解
15.a place of interest                           一处名胜