Then examine each metacarpal phalangeal joint. Place your thumbs just distal to the knuckle on each side of the extensor tendon.是什么意思_Then examine each metacarpal phalangeal joint. Place your thumbs just distal to the knuckle on each side of the extensor tendon.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句