Silverine
铜镍耐蚀合金
🗣️ 情景例句
There is not a shadow of a doubt that they did it.
毫无疑问，是他们干的。
Did you see Mr. Jones yesterday?
你昨天看见琼斯先生了吗？
This pressure must be under control,
这种压力必须加以控制，