常見(jiàn)例句用作名詞 (n.)A hearing aid helps to overcome defects in hearing.助聽(tīng)器有助於尅服聽(tīng)覺(jué)缺陷。She adjusted the power on her hearing aid.她調(diào)了調(diào)助聽(tīng)器的電流量。 返回 deaf aid