🗣️ 情景例句
Give me two tickets to New York.
请给我两张去纽约的票。
He is in difficulty in his business.
他在事业上遇到困难了。
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。