He had still not fully recovered.

他还没有彻底康复。

《柯林斯英汉双解大词典》

'I'm still not sure,' he said at length.

“我还是没把握。”他最后说道。

《牛津词典》

I'm still not clear what the job involves.

我仍然不明白这项工作包括哪些内容。

《牛津词典》

He says the methane discovery presents scientists with a mystery because it is still not clear how the gas is being produced.

VOA: special.2009.12.30

and had still not learned almost anything. She had one of those teach-yourself-piano books,

但并没有学会。她有一本自学钢琴的书，

和钢琴老师 - SpeakingMax英语口语达人

Well you can read the story, it's in Numbers 20, the incident is described there. But the answer is still not entirely clear, it's not clear what Moses did that was so bad as to deserve this punishment.

你们可以阅读这个故事，在民数记20，讲述了这个事件,然而答案却仍然不是完全清楚的，摩西究竟做了什么,坏事才遭受这样的惩罚，还不完全清楚。

耶鲁公开课 - 旧约导论课程节选

In a career spanning five decades, their effect on pop has still not diminished.

BBC: The Bee Gees - five decades of hits together

They would still not be allowed to gamble in the casinos aimed at tourists.

BBC: The high-low split of gambling cities

That's still not mass-market tourism, but the region's growing attraction has evoked howls from some quarters.

FORBES: Go with the Floe