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n. 旗昌浦
🗣️ 情景例句
I am so excited. Mother!
我好兴奋， 妈妈！
In prosperity think of adversity.
居安思危。
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。