Cerithiacea
拟蟹守螺总科
🗣️ 情景例句
I enjoyed lunch, Susan.
这顿午餐真好， Susan。
It is madness for a sheep to treat of peace with a wolf.
跟狼讲和平，此羊必癫狂。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。