Some things work better in certain countries and it depends on the country.

一些策略在某些市场有效，这主要取决于所在的国家。

youdao

Valentine's day is only celebrated on February the 14th in certain countries.

在有的国度，情人节只在2月14日庆祝。

youdao

This part of the program is difficult to implement in certain countries due to the lack of resources.

在某些国家，由于缺少资源，项目的这个方面很难实施。

youdao

It's only endemic, that means only naturally occurring in certain countries.

这是种地方性疾病,这意味着仅在几个特定国家中发病

耶鲁公开课 - 生物医学工程探索课程节选

So at least one company has had to block readers in certain countries from reading certain pages.

FORBES: You Can't Say Effin on Facebook

He added that his company often had to make "heroic endeavours" to get things done in certain countries.

BBC: Davos 2013: Africa must 'boost infrastructure spending'

It said it would be looking at the resolution of "possible accounting, control and compliance issues...in certain countries".

BBC: NEWS | Business | Adecco shares dive on audit fears