wèi le / xún zhǎo / shī zōng / de / duì yǒu / tā men / pá shān shè shuǐ / zǒu / le / zhěng zhěng / sān tiān

为了寻找失踪的队友，他们爬山涉水走了整整三天。

To find their missing teammate, they climbed mountains and waded rivers for three whole days.