exogeneous ore deposit

例句：

1. 1. The mineral deposit is exogeneous in origin.
   这个矿床是外来的。
2. 2.The research on the exogeneous origin of the disease has not been fully explored.
   关于这种疾病外来起源的研究尚未完全展开。
3. 3. The foreign tourists were attracted by the unique culture of the local area.
   外国游客被当地独特的文化所吸引。