flank

指挥官派出一支部队保护我们的右翼。

The commander sent a unit to protect our right ___flank.

马匹在训练时受伤，兽医正在检查它右侧的侧腹部。

The horse got injured during training, and the vet is checking its right ___flank.

两座高山矗立在小村庄两侧。

Two high mountains ___flank the small village.