Birders can generally identify every species on their life list, though they may consult with numerous field guides for certainty.
尽管他们有时也要通过众多观鸟指南的参考来确定，但鸟人通常可以确认他们自己的鸟种清单上每一个鸟种。
Birders can generally identify every species on their life list, though they may consult with numerous field guides for certainty.
尽管他们有时也要通过众多观鸟指南的参考来确定，但鸟人通常可以确认他们自己的鸟种清单上每一个鸟种。
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