Clause 1, 但是 + Clause 2
但是 (dànshì) means "but" or "however" and is used to introduce a contrasting statement after acknowledging a point. It connects two clauses where the second clause presents an unexpected turn or counterpoint to the first.
这家餐厅很有名,但是价格太贵了。
zhè jiā cāntīng hěn yǒumíng, dànshì jiàgé tài guì le.
This restaurant is very famous, but the prices are too expensive.
我很想去旅行,但是最近没有时间。
wǒ hěn xiǎng qù lǚxíng, dànshì zuìjìn méiyǒu shíjiān.
I really want to travel, but I don't have time recently.
他学习很努力,但是成绩还是不太理想。
tā xuéxí hěn nǔlì, dànshì chéngjì háishì bú tài lǐxiǎng.
He studies very hard, but his grades are still not ideal.