Speedex
斯皮德克斯镍银, 斯皮德克斯铜镍锌合金(商品名)
🗣️ 情景例句
Let's go out clubbing ater the mid-term exams.
期中考试以后我们一起上酒吧。
Necessity is the mother of invention.
穷则变，变则通。
John works in a factory about ten kilometres from his home.
约翰在一家距离他家大约 10公里远的工厂工作。