With these limbs, Megalneusaurus was propelled through the water like a submarine rowboat with four oars powered by two strong oarsmen.是什么意思_With these limbs, Megalneusaurus was propelled through the water like a submarine rowboat with four oars powered by two strong oarsmen.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句