穿越喜马拉雅山的长途徒步既充满挑战又收获颇丰。

The ___trek through the Himalayas was both challenging and rewarding.

经过两天穿越丛林的艰苦长途徒步，我们终于到达了那个偏远的村庄。

After a grueling two-day ___trek through the jungle, we finally reached the remote village.

许多冒险家梦想完成前往珠穆朗玛峰大本营的长途徒步。

Many adventurers dream of completing the ___trek to the base camp of Mount Everest.