这些步兵在战场上勇敢地抵御敌人的进攻。

The ___foot soldiers bravely defended against the enemy's attack on the battlefield.

这些基层员工是公司的中坚力量，虽然职位不高但承担了大量基础工作。

These ___foot soldiers of the company handle most of the groundwork despite their low-ranking positions.