Alfenide
阿尔芬纳德镍黄铜(耐稀酸), 铜镍合金
🗣️ 情景例句
Oh, I'm sorry Susan isn't here.
啊 可惜Susan不在。
What is on the schedule this morning?
今天上午有什么安排？
The two boys are in the river now.
两个男孩现在在河里。