连年来，她一直在努力学习英语。

Liánnián lái, tā yīzhí zài nǔlì xuéxí yīngyǔ.

She has been diligently studying English for years.

这个项目已经连年获得奖项。

Zhège xiàngmù yǐjīng liánnián huòdé jiǎngxiàng.

This project has won awards consistently over the years.

他们连年保持着友好的合作关系。

Tāmen liánnián bǎochízhe yǒuhǎo de hézuò guānxì.

They have maintained a friendly cooperative relationship for years.