Mesospore
孢子中壁
🗣️ 情景例句
I don't get it.
我不懂你的话。
Lava flowed out of the crater.
喷火口流出了熔岩。
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。