Sendust
铝硅铁粉, 山达斯特合金, 铁硅铝磁合金
🗣️ 情景例句
And if you ever need Dad or me to help you ...
如果你们的确需要我和爸爸的帮助的话 ……
There are many training classed and night classes.
有许多培训班与夜校。
He used to learn everything by rote.
他过去总是死记硬背。