The anterior cruciate ligament (ACL) is a strong band of tissue that is located within the knee and connects the thighbone (femur) to the shinbone (tibia).是什么意思_The anterior cruciate ligament (ACL) is a strong band of tissue that is located within the knee and connects the thighbone (femur) to the shinbone (tibia).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句