Permendur
波明德合金
🗣️ 情景例句
I'd like to make an appointment to discuss a question.
我想约个时间讨论个问题。
I'm busy!
我在忙啦！
(remember how easily the Apollo astronauts bounded along),
还记得阿波罗飞船中的宇航员轻松地跳跃-