| 单词 | 某些病原体 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔alternate host〕One of two species of host on which some pathogens, such as certain rust fungi, must develop to complete their life cycles.交替宿主：两种宿主中的一种，某些病原体，如锈真菌要在宿主中生存并结束生命循环美国传统 |
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