Neusilber
铜镍锌合金
🗣️ 情景例句
He is not cut out for teaching.
他不是当教师的料。
Cheerful company shortens the miles.
旅有好旅伴，不觉行程远。
Jim is writing. Lily isn't writing. She's looking at the blackboard.
吉姆在写字。莉莉没在写字。她在看黑板。