以ch结尾的单词发k音的比较少，例如
eunuch太监；
shuck壳，外皮；
tech技术的
He shucked his coat and set to work.
他脱掉了外套开始工作。
On a good day, each employee will shuck 3,500 oysters.
天气晴好的时候，每位雇员一天能剥3,500只牡蛎。
In the long run, the tech companies are destined to emerge victorious.
从长远来看，技术公司必定会取得胜利。
