Devicehigh
[計] DOS內部命令
??? 情景例句
There is still a week to go before the vacation begins.
現在距離假期還有一星期。
Do you have any comments to make on the recent developments.
你對最近事態的發展有什么評論嗎？
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧氣在空氣中的含量達到25%，它就要燃燒。