In addition, calves in echelon spent over a third of their time gliding while no gliding was observed in calves swimming on their own.是什么意思_In addition, calves in echelon spent over a third of their time gliding while no gliding was observed in calves swimming on their own.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句