| 单词 | Pteridium aquilinum |
| 例句 | One of the most widely distributed types, the bracken fern, Pteridium aquilinum, is toxic to many animals because it contains high concentrations of ptaquiloside, a poison to livestock and a human carcinogen. Why Animals Avoid Munching on Ferns 2017-07-17T04:00:00Z |
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