第3句建議用but或yet
still: （來自柯林斯詞典）
ADV 但是;盡管如此;(雖然…)還是
You use still to emphasize that something remains the case or is true in spite of what you have just said.
I'm average for my height. But I still feel I'm fatter than I should be...
從身高來看，我算是中等身材。但我還是覺得自己胖了點。
ADV (表示不必擔心)然而，不過
You use still to indicate that a problem or difficulty is not really worth worrying about.
Their luck had simply run out. Still, never fear...
他們的好運已經到頭了。不過，別擔心。
yet: （來自柯林斯詞典）
CONJ-COORD （用於引出頗令人驚訝的事實）可是卻，卻又
You can use yet to introduce a fact which is rather surprising after the previous fact you have just mentioned.
I don't eat much, yet I am a size 16. 我吃得並不多，但是卻穿16碼的衣服。