Mafelsic
镁铁硅质
🗣️ 情景例句
The best way to promote your products is through advertising.
推广产品最好的方法就是买广告。
Have you taken a bus?
你坐过汽车吗？
We are all very excited and are looking forward to the Olympic Games because they have never been held before in this country.
我们都非常激动，盼望着奥运会的到来，因为在这个国家里还从未举办过奥运会。