to guard against
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→di1fang2 • dīfáng
dike
dyke, embankment
这 条 堤防 是 十 年 前 修建 的。
This embankment was built ten years ago.
堤防 的 建设 需要 很多 资源。
Building the embankment requires many resources.
暴雨 对 堤防 构成 了 威胁。
The heavy rain posed a threat to the embankment.