He was serious about the character and he needed to make great efforts.

他对这个角色很认真，需要做出很大的努力。

youdao

Make great efforts to hide your smile in the bottom of heart.

努力把你的微笑藏在心底。

youdao

If we make great efforts and still can't come up with an answer, then we can surf online to search solutions.

如果我们作出巨大的努力，仍然不能提出一个答案，那么我们可以在网上冲浪搜索解决方案。

youdao

They make great efforts to keep their business model as simple as possible.

ECONOMIST: Schumpeter

The boat tour takes between two to four hours and the guides, available in English or Spanish, make great efforts to point out all of the birds -- and lurking crocodiles -- along the way.

BBC: Relaxing among the Yucatan's flamingos

The efforts of industry have the potential to make a great difference, Clinton argued, but will have a limited effect if young people do not realize that these resources are available to them.

CNN: Lauds efforts in California; offers aid to Navajos