Cetylid
脑脂水解物
🗣️ 情景例句
What happened?
怎么了？
The lion is known by his claws (paw).
狮以爪闻名。
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。