劍橋詞典the soft part of the hand at the base of the thumb 魚(yú)際(拇指基部的掌側(cè)隆起) Carpal tunnel syndrome may cause thumb weakness and thenar atrophy . 腕管綜合征可能導(dǎo)致拇指乏力和魚(yú)際萎縮。 返回 thenar