畅通

zhè lǐ guò qù hěn piān pì xiàn zài tiě lù gōng lù quán chàng tōng le

这里过去很偏僻，现在铁路公路全畅通了。

This formerly inaccessible place can now be easily reached by road and rail.

qián fāng dào lù chàng tōng wú zǔ

前方道路畅通无阻。

The road ahead is clear.

shì gù guò qù hòu hěn cháng shí jiān jiāo tōng cái huī fù chàng tōng

事故过去后很长时间交通才恢复畅通。

The traffic took a long time to clear after the accident.

gōng lù chàng tōng

公路畅通

normal highway traffic

jiāo tōng chàng tōng

交通畅通

clear up traffic congestion