at this time;first;second;at last;next；previously;simultaneously;eventually；last but not least；to begin with；to start with；to end with；finally；seeing...；since then；first of all；afterwards;following this;preceding this.
because；because of this；being that；another important factor／reason of...；since；as；for；in that...；owing to；due to；for the reason that...；in view of；the reason seems to be obvious;there are about...；for this reason;as a result of this；therefore；...and so...；consequently；as a result；thus；hence；so；so that...；in consequence；as a consequence；accordingly;inevitably;under these conditions;thereupon.
but；even so；however；though；even though；independent of；reckless of；despite that；in spite of that；regardless of;yet...；and yet；but unless.
and;also；too；as well as；either...，or...；both...and...
furthermore；moreover；further；In this way；still；not only...but also...；not...but...；in addition(to)；additionally,much more interesting,more specifically,next,besides；as far as...is concerned;moreover；in other words；along this line of consideration；on the one hand...，on the other hand...；even；as a poplar saying goes...；in order to do it...;meanwhile；at the same time；accordingly；In the first place...，in the second place...;equally important;of even greater appeal.
similarly;in like manner,in comparison with；when compared with；compared with；when in fact...;like...；likewise；similarly important；apart from(doing)...；...rather than...，by doing so；both…and...;in the same way;not only...but(also).
yet;still;for all of that;notwithstanding;rather;neither...nor;although;though;but;however;something is just the other way around；yet;conversely；unlike；opposed to;as opposed to；in contrast(to)；by way of；on the contrary；different from this；as opposed to this；nevertheless;contrary to；whereas；while；but on the other hand.
for example；for instance；in this case;namely；as you know；you may as／say；as he explains；like；such as；a case in point is...;consider...；in particular；including...；for one thing...，for another...；put it simply；stated roughly；as an illustration，I will say...；a good example(of...)would be...；to detail this，I would like to...；It is interesting to note that...；in this situation;as proof;take the case of;take as example(something)；as for;as regards；as to；according to;on this occasion.
in fact;especially；particularly；moreover；naturally;what is more important；in reality；certainly;of course;indeed;in particular；not to mention...；believe it or not；undeniably;other thing being equal；it is certain／sure that...；to be strict;to be true；by definition;definitely;undoubtedly;without a doubt;in truth,in any event(不论怎样);without reservation(毫无保留地);obviously,not only..but(also...),both...and...
if；unless;lest；provided that；if it is the case；in this sense；once...；if possible；if necessary；if so；if not all;if anything.
in other words；on the whole;in sum;therefore；hence；in short；in brief；to sum up；in conclusion;in summary；to conclude；the conclusion can be drawn that...;for this reason;in short.
beyond;opposite to;adjacent to;at the same place;there;over;in the middle;around;in front of;in the distance;farther;here and there;above;below;at the right;between;on this side.
with this object;for this purpose;in order that;in this way,since;so that;on that account;in case;with a view to;for the same reason.
in other words;that is to say;as I have said;again;once again.
accordingly;thus;consequently;hence;therefore;thereupon;inevitably;under these conditions;as a result;as a consequence;because;because of;so that;not only...but(also...);so...as to.
first;second;thirdly;next;then;at the outset(在开始时)，following this;at this time;now;at this point;after;afterward;after this;subsequently;lastly;finally;consequently;before this;previously;preceding this;simultaneously;concurrently(同时).
at once;immediately;at length;in the mean time;meanwhile;at the same time;in the end;then;soon;not long after;later;at once;at last;finally;some time ago;at present;all of a sudden;from this time on;from time to time;since then;when;whenever;next point;a few minutes later;formerly;as;once;since;occasionally;in a moment;shortly;whereupon;previously