His persistence
坚持───insist;他───he
Our buyers insist on high standards of workmanship and materials.───我们的买主对工艺和材料坚持要高标准。
Bank of England officials continued to insist that the pound would soon return to stability but disaster struck.───英格兰银行官员仍然坚持说英镑不久就会恢复稳定，但结果灾难爆发了。
Since they insist on going, we'll simply push the boat with the current and let them go with us.───既然他们坚持要去, 干脆我们就顺水推舟,让他们一同去吧.
Both Boeing and Airbus insist that so far there have been virtually no cancellations.───波音和空客都强调到目前他们都还没有遇到退订的情形.
He continues to insist that all he wrote in the book is nothing but the truth, and that he will stand by his word.───他仍坚持说，他在书里写的全都是事实，他会信守自己说过的话。
You feel that it's uneconomic to insist that people work together in groups. Why is this?───你觉得要求大家分组工作不划算，这是为什么呢？
The authorities insist that the discussions must not be linked to any other issue.───当局坚持此次讨论不得涉及其他任何问题。
The analysts applaud the cuts in marginal businesses, but insist the company must make deeper sacrifices.───分析家们赞同削减边缘业务，但坚持认为公司必须作出更大牺牲。
We insist on / upon self-reliance.
I insist on paying for the damage.
Sentencedict.com is a online sentence dictionary, on which you can find nice sentences for a large number of words.
'Please come with us' 'Very well then, if you insist.'
In a complex world,to insist upon simplicity is foolish.