Oligonite
[化] 菱锰铁矿
🗣️ 情景例句
Hello, my name is ... May I speak to ...?
喂， 我叫……我可以和……讲话吗？
Every country has its customs.
乡有乡俗。
Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back.
大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。