患病;受病;
This disease is surprisingly difficult to catch as most people have a natural resistance to it.
由于多数人对这种病具有天然免疫力,所以发病率低得出奇。
来源:《柯林斯高阶英汉双解学习词典》Spot falls ill on leaf sheath of seedling catch a disease, the edge is not clear.
幼苗染病叶鞘上生褐色病斑, 边缘不明显.
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