n.英语字母表的第11个字母
abbr.一千，千米，公里，开(温度单位)

The key to success is hard work and determination.
成功的关键是努力和决心。
He lost the key to his house, so he had to call a locksmith.
他把房子钥匙丢了，所以只好找锁匠。
She has a knack for solving math problems.
她有解决数学问题的天赋。
The kingdom was ruled by a just and wise king.
这个王国由公正而睿智的国王统治。
They are working on a project under the K-level security clearance.
他们在K级别安全许可下进行项目工作。
The keyboard on my computer is sticky; I need to clean it.
我电脑的键盘粘住了，我需要清理一下。
The kids were thrilled to find a magical key in the garden.
孩子们在花园里发现了一把神奇的钥匙，非常兴奋。
The K-factor in this experiment refers to the rate of reaction.
实验中的K因子指的是反应速率。
The K-12 education system ensures a solid foundation for students.
K-12教育体系为学生提供了坚实的基础。
The concert tickets sold out quickly, but I managed to secure a K-seating spot.
音乐会票很快就售罄了，但我设法弄到了前排K区的座位。