sand dike

例句：

1. 1. The construction of the sand dike has been completed successfully.
   沙堤的建设已成功完成。
2. 2. The sand dike is a crucial part of the flood control system.
   沙堤是防洪系统的重要组成部分。
3. 3.The sand dike protects the village from the frequent floods.
   沙堤保护村庄免受频繁洪水的侵袭。