表示并列：eitheror; neithernor; bothand; not onlybut also;
表示递进的：besides; whats more; whats 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; sothat; 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.; preferto; would rather dothan 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 ones 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 ones mind to do; in a way。