| 单词 | butterflier | 
| 释义 | butterfliernoun  but·ter·fli·er  ˈbə-tər-ˌflīr  -ˌflī-ər    plural butterfliers   1   : a person who observes and identifies butterflies in their natural environment  Already, like birders, butterfliers are trekking the world in search of ever more exotic species. 2   : a swimmer who specializes in the butterfly : butterflyer   | 
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