明沟

wā yī tiáo míng gōu

挖一条明沟

dig an open ditch

míng gōu pái shuǐ

明沟排水

open-ditch drainage

zhè tiáo jù dà de míng gōu huì chéng wéi tú zhōng zuì dà de zhàng ài

这条巨大的明沟会成为途中最大的障碍。

This huge open ditch forms the biggest obstacle on the course.