常用的连接词:

1)表层次:

first, firstly to begin with further in the first place

second, secondly to start with still furthermore

third, thirdly what is more last last but not least

also and then next besides

and equally important too moreover

besides in addition finally

2)表转折;

by contrast although though yet

at the same time but despite the fact that even so

in contrast nevertheless even though for all that

notwithstanding on the contrary however in spite of

on the other hand otherwise instead still

regardless

3)表因果;

therefore consequently because of for the reason

thus hence due to owing to

so accordingly thanks to on this account

since as on that account in this way

for as a result as a consequence

4)表让步：

still nevertheless concession granted naturally

in spite of all the same of course despite

even so after all

5)表递近：

furthermore moreover likewise what is more

besides also not only...but also...

too in addition

6)表举例：

for example for instance for one thing that is

to illustrate as an illustration a case in point

7)表解释：

as a matter of fact frankly speaking in this case namely

in other words

8)表总结：

in summary in a word thus as has been said

in brief in conclusion altogether in other words

to conclude in fact finally in simpler terms

indeed in short in particular that is

in other words of course on the whole to put it differently

namely in all therefore to summarize

The Transport system is an essential part of the City's infrastructure. It is a means through which economic, social, environmental and other objectives can be advanced. But it is also a system that can frustrate the achievement of key objectives. But with city pollution and environmental demands ever pressing, the day of the car, bus and cab as we know them are numbered.

更多信息请查看留学英语写作