以前南京是中国南部的一个比较重要的交通的一个城市。那你可以说，南京的交通四通八达。还有可能它可以坐船，因为长江，还有运河什么的。
yǐqián Nánjīng shì Zhōngguó nánbù de yī gè bǐjiào zhòngyào de jiāotōng de yī gè chéngshì 。nà nǐ kěyǐ shuō ，Nánjīng de jiāotōng sìtōngbādá 。háiyǒu kěnéng tā kěyǐ zuò chuán ，yīnwèi Chángjiāng ，háiyǒu yùnhé shénme de 。
In the past, Nanjing was a very important city for transportation. So you can say, Nanjing's transportation is very convenient. It's also possible to take a boat there because of the Yangtze River. It also has canals and things like that.