Meaning of bù tōng:
不通
to be obstructed; to be blocked up; to be impassable; to make no sense
Zhè tiáo lù yīnwèi shīgōng ér bù tōng.
这条路因为施工而不通。
This road is obstructed due to construction.
Dàolù yīnwèi dàxuě ér bù tōng.
道路因为大雪而不通。
The road is blocked due to heavy snow.
Yóuyú bàofēngyǔ, zhè tiáo zhǔyào dàolù yǐjīng bùtōng le.
由于暴风雨,这条主要道路已经不通了。
Due to the storm, this main road is already impassable.
Tā de jiěshì wánquán bù tōng, ràng rén tīng bù dǒng.
他的解释完全不通,让人听不懂。
His explanation makes no sense at all, it is confusing.
to be illogical
Tā de lǐyóu wánquán bù tōng, ràng rén nányǐ lǐjiě.
他的理由完全不通,让人难以理解。
His reasoning is completely illogical, and difficult to understand.