孩子们在公园里踩着高跷玩耍。

The kids are playing in the park while walking on ___stilts.

湖边的小屋建在支柱上，以防洪水。

The lakeside cabin was built on ___stilts to prevent flood damage.

他的感谢信听起来很生硬，充满了不自然的表达。

His thank-you letter sounded awkward with ___stilted expressions.