We have no alternative but to insist on a cash payment within three days.

我方别无办法，务必请在三日内支付现金。

youdao

If this is not possible, I will have no alternative but to insist on a full refund.

如果这是不可能的，我将别无选择，只好坚持全额退款。

youdao

After several days, they entrusted someone again to buy from Hu, But Hu insist on his price.

外商不买，过了数日，再托人向胡申买，胡坚持咬定此价。

youdao

Lawyers have questioned the legality of the ban on political rallies, but officials continue to insist they are more interested in ensuring public safety than stifling political dissent.

VOA: standard.2009.03.12

And there's the clumsy beast, wounded by its own history of cronyism and corruption but proud enough to insist on its own rules.

FORBES: Energy Tsar

You can agree to sell but insist on payment in January and it will be respected.

FORBES: Should You Grab Pay In 2012 Or Defer 'Til 2013?

The two men then announced that a year-long study would be commissioned to establish how the military would accommodate those who seek to serve but who insist on doing so as avowedly gay, lesbian, bisexual, transgender and "intersexed" (formerly known as hermaphrodite) folks.

CENTERFORSECURITYPOLICY: Gitmo 2