先写逗号,但是THEN可以不加逗号,之后一定是加完整的句子。 比如,To begin with, a lot of students want to have high marks in the exam.Furthermore, they also want to get a good job. 这两个句子都是完整句。 另外,其他的逻辑连词有,moreover, therefore, nevertheless,on the other hand, also,otherwise,last but not least.... 这些都是常用的逻辑连词,都放在句首,后面逗号,然后直接加句子!