Abstract The paper shows the meaningful methods and significance of avian systematics based on bird vocalization by referencing many literature concerning bird songs and calls and avian systematics.是什么意思_Abstract The paper shows the meaningful methods and significance of avian systematics based on bird vocalization by referencing many literature concerning bird songs and calls and avian systematics.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句