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- 癌症迄今有无有效的治疗方法？
Is there a certain cure for cancer yet?
- 迄今为止，我从未听说过有人因生活费过昂而不要生存下去的。
So far I haven't heard of anybody who wants stop living on account of the cost.
- 英国政府对这些报道迄今不予置评。
Downing Street has so far refused to comment on these reports.
- 科学家们正在作一项迄今为止没人做过的实验。
The scientist is doing experiments no one has so far attempted.
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