长途徒步后，我们拖着沉重的脚步沿着小路返回营地。

After the long hike, we ___trudged ___back ___up the trail to the campsite.

探险家们在浓密的丛林泥沼中艰难跋涉了数日。

The explorers ___trudged ___through the thick jungle mud for days.

他拖着疲惫的步伐沿着空旷的道路行走，每一步都在与精疲力竭抗争。

He ___trudged ___along the deserted road, each step a battle against exhaustion.