原因类:

1) because …

2) because of …

3) due to …

4) since …

5) as …

6) for …

7) The reason is …

8) That’s why …

9) By reason of …

10) Owing to …

结果类:

1) so …

2)so that …

3)therefore …

4)thereby …

5)hereby …

6)thus …

7)As a result

8)consequently …

9)hence …

10)accordingly …