Alfer
铁素体合金, 铝铁合金, 阿尔费诺尔铁铝磁致伸缩合金
🗣️ 情景例句
How long do you intend to stay?
你打算在这儿呆多久？
Would you mind mailing this letter for me?
你能替我寄这封信吗？
I had a letter from my sister yesterday.
昨天我收到了姐姐的一封信，