表示并列：either…or; neither…nor; both…and; not only…but also;
表示递进的：besides; what's more; what's worse; (moreover);
表示原因的：because; for…; because of…; thanks to…; (for the reason that…);
表示结果的：so; as a result; so…that…; therefore;
表示目的的：so that…; in order that…; (in order) to…; for…;
表示对比的：while; on the one hand + on the other hand; Each coin has two sides.; prefer…to…; would rather do…than do…;
表示转折的：however; but;
表示举例的：for example; for instance; such as…; like…; that is to say…
表示总结的：in all/short; in a word; in brief/ total; last but not least; last;
表示利弊的：be good/bad for sb.; be harmful to sb.; do harm to sb.; …have great/much influence on sb.; sth. benefit sb.; sb benefit from sth.;
affect; have an effect on sb.;
表示喜爱的：love/like/enjoy…; be fond of…; be interested in…; show great interest in…; lose oneself in…; put one's heart into…; be good at; be poor at; be weak in;
表达个人想法的：I think/believe…; (as) for me; in my opinion/view; as a student; from the bottom of my heart; personally;
其他：in general; generally speaking; to be short; to be honest; to tell the truth; as we know; make up one's mind to do; in a way。