Pectinibranchia
[医] Х鳃目
🗣️ 情景例句
What pretty flowers! Thank you.
好漂亮的花!谢谢你。
Could you tell me where is the elevator?
你能不能告诉我电梯在哪里？
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。