1、然而，很可惜的是…

However, it is a pity that 從句

例：然而，很可惜的是他總是臨時抱佛腳。

However, it is a pity that he should always cram at the eleventh hour.

2、換言之…

in other words=to put it differently

例：換言之，我會盡最大的努力達成我的目標。

In other words, I will try my best to attain (gain, live up to) my goal.

3、別人可能認為這是事實，但我不是。我認為…

It may be true as assumed by others, but I don't. I believe that 從句

例：別人可能認為這是事實，但我不是。我認為只要有堅定的決心和意志，勝利終究會屬于你的。

It may be true as assumed by others, but I don't. I believe that if you have strong determination and perseverance, the success will certainly come to you in the end.

4、從此之后，我發現…

Ever since then, I have found that 從句

例：從此之后，我發現微笑是面對生活中任何挫折的最佳方式。

Ever since then, I have found smile is the best way to avoid any possible conflicts in our daily lives.