Kettering
n. 凯特灵（姓氏）
🗣️ 情景例句
he'll be an important decision-maker
他将成为一个重要的决策者
I get into bed at about 11:30 and go right off to sleep.
我大约在11:30上床并且睡觉。
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。