通

tōng

to go through, to know well, (suffix) expert, to connect, to communicate, open, to clear, classifier for letters, telegrams, phone calls etc

通

tòng

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

我不喜欢交通

wǒ bù xǐ huan jiāo tōng

I don't like traffic

请遵守交通法规。

qǐng zūn shǒu jiāo tōng fǎ guī。

Please obey traffic laws.

我终于通过了考试

wǒ zhōng yú tōng guò lè kǎo shì

finally I passed the exam

我正在学习普通话

wǒ zhèng zài xué xí pǔ tōng huà

I am learning mandarin

最终你通过了考试。

zuì zhōng nǐ tōng guò le kǎo shì。

Eventually you pass the exam.

我有信心通过这次考试

wǒ yǒu xìn xīn tōng guò zhè cì kǎo shì

I am confident to pass this exam

我们应该遵守交通规则

wǒ men yīng gāi zūn shǒu jiāo tōng guī zé

We should obey traffic rules

我们需要遵守交通规则。

wǒ men xū yào zūn shǒu jiāo tōng guī zé。

We need to obey the traffic rules.

经过努力你可以通过考试

jīng guò nǔ lì nǐ kě yǐ tōng guò kǎo shì

You can pass the exam with hard work

我迟到的原因是交通堵塞。

wǒ chí dào de yuán yīn shì jiāo tōng dǔ sè。

The reason I was late was the traffic jam.