Manasseite
[矿]水镁铝石
🗣️ 情景例句
I've never been to the aquarium
我从来没有去过水族馆
I'm free tomorrow.
我明天有空。
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。