Electrophonoide
[医] 电助听训练器
🗣️ 情景例句
She majored in math and physics at university.
她在大学里主修数学和物理。
My brother wants to learn how to dance.
我的兄弟想要学习跳舞。
only of metal, which wears away by friction.
而是由金属组成，而金属可以随着磨擦而磨损殆尽。