(1)首先：firstly, to begin with; in the first place; in the first instance
(2)其次：secondly, in the second place; then
(3)最后：last but not the least; finally; at last; in the end; lastly
(4)此外：what's more, besides; moreover; furthermore; in addition
eg: To begin with, I’d like to extend my gratitude to all distinguished guests.
Firstly, it's too expensive, and secondly, it's not sturdy.
Lastly, I would like to thank my parents for all their support.
(1)然而：but, yet, while, whereas, nevertheless, however
(3)反而，代替，而不是：instead, instead of
Some of the students got good results, whereas others do not.
I was deeply moved by her, although I didn’t know her.
She didn’t say anything. Instead, she left the room.
(1)因为：because, for, because of, owing to, on account of, due to
(2)为了：for this (that, these, those) reason(s)
(3)因此：thus, hence, therefore
(5)结果：as a result, so that
The sports meeting was postponed because of the bad weather.
For that reason, I didn’t believe what he said.
He's 19 now and therefore is eligible to vote.
She got up late and consequently was late for school.
(1)也就是说：namely, that is, that is to say
(2)例如：for example, for instance, such as
(4)以……为例：take…as an example
He left without saying good-bye, that is to say, he didn’t want to be found.
Many factors should be considered, for example, class, gender, and age.
He took China as an example when talking about natural resources.