Calcispongea
钙海绵钢
🗣️ 情景例句
I waited for you for about a quarter of an hour.
我等了你差不多一刻钟。
In secondary school, children study history and geography.
中学的小孩会读历史和地理。
After this he immediately lets himself in and begins barking again.
出去之后，它又马上把自己放进来，接着再开始叫。