| 释义 |
DEFINITIVE EXAMPLES 权威例句〔heteroecious〕Spending different stages of a life cycle on different, usually unrelated hosts. Used of parasites such as rust fungi and tapeworms.异寄主的:在生命周期的不同阶段,寄生于不同的、通常为不相关的寄生主上的,如锈菌真菌和绦虫等寄生虫美国传统〔main topgallantmast〕The section of the mainmast next above the main topmast on a square-rigged sailing vessel.主上桅:横帆式帆船上主顶桅之上紧挨着主桅的部分美国传统〔main topgallant〕A sail or yard set from the topgallant section of a mainmast.主上桅帆:在主桅顶桅部分的帆或桁美国传统 |