Word: 隧道 (suìdào)

他觉得隧道好像没有尽头。

Tā juéde suìdào hǎoxiàng méiyǒu jìntóu.

He felt as if the tunnel had no end.

日本最长的隧道在哪里？

Rìběn zuì cháng de suìdào zài nǎlǐ?

Where is the longest tunnel in Japan?

穿过这条隧道，就到海边了。

Chuānguò zhè tiáo suìdào, jiù dào hǎibiān le.

Once you go through this tunnel, you're at the seaside.

这条隧道穿越整座大山。

Zhè tiáo suìdào chuānyuè zhěng zuò Dàshān.

This tunnel passes through the entire mountain.