in my opinion 依我看来 however,然而,on the other hand,另一方面
first of all 首先 finally 最后 ,It is +形容词+to do sth
Where there is a will,there is a way.有志者事竟成
when in Rome ,do as Romans do.入乡随俗
One coin has two sides.事物都有两面性
Different people have different opinions.不同的人有不同的观点