當“then”表示時間或者事物的先后順序時，替換詞有：
Next, so later, after that, afterwards
1.I finished my work and I was feeling tired. So later when I got home, I had a nap.
我完成工作之后覺得非常累，之后就回家睡了一覺。
2.Let's go out now and eat afterwards.
我們現(xiàn)在出去吧一會再去吃飯。
3.Shortly afterwards I met my ex again.
不久之后，我又遇到了我的前任。

當“then”表示“而且，此外”的意思時，替換詞有：
Further, furthermore, moreover, in addition, additionally
1.He is old and unpopular. Furthermore, he has only 2 years of political life ahead of him.
他年紀大了又不得人心。而且，他也只有兩年的政治生命了。
2.I choose you because you can speak Cantonese, moreover, you are the only person I can think of who is capable of doing this job.
我選擇你是因為你能說粵語。而且，你也是我能想到的能勝任這份工作的唯一人選。

and then some 而且遠不止這些
The final was killing us. It includes 40 multiple choice questions, one short essay question, 10 true or false questions, and then some.
這次期末考試太讓人痛苦了。它有40道多選題，一個簡答題，10道判斷題，而且還遠不止這些。

but then 不過，話又說回來
I was about to argue with him, but then I realized that he might be right.
我正準備和他爭論，不過我又意識到，他也許是對的。