土堤

例句：

1. 1. The ancient city walls are a testament to the skill of its builders.
   古老的城墙是建造者技艺的见证。
2. 2. The engineers were working on building an earthen dyke to prevent floods.
   工程师们正在修建一道土堤以防止洪水。
3. 3. The farmers used to build earthen walls around their fields to protect crops from pests.
   农民过去会在他们的田地周围建造土墙来保护作物免受害虫侵害。