我wǒ很hěn累lèi，但dàn是shì还hái是shì要yào坚jiān持chí。

I am very tired, but I still need to persevere.

价jià格gé高gāo，但dàn是shì很hěn好hǎo用yòng。

The price is high, but it works well.

他tā能néng力lì很hěn强qiáng，但dàn是shì缺quē乏fá经jīng验yàn。

He is very capable, but lacks experience.

我wǒ喜xǐ欢huan她tā，但dàn是shì她tā不bù喜xǐ欢huan我wǒ。

I like her, but she does not like me.

天tiān气qì很hěn冷lěng，但dàn是shì我wǒ不bù怕pà。

The weather is cold, but I am not afraid.