Since we don t have a complete understanding of string theory, it s impossible to rule out all possible models that are based on strings, said Rothstein.

罗斯丁说，“由于我们没有完全理解弦理论，因此不能排除基于弦的各种可能模式。”

youdao

It 's impossible for the job to be finished in time.

这项任务要按时完成是不可能的。

youdao

It 's impossible to focus on studying if you have all sorts of negative ideas about studying.

如果你对学习有很多消极思想，就不可能把注意力集中在学习上。

youdao

It is impossible to imagine many of George's songs without Ira's perfectly chosen,often surprising words.

VOA: special.2009.02.08

These are unquestionably strong words, and I think it's impossible for us to overestimate the weight of these words.

毫无疑问，这些言辞非常激烈，我觉得,怎么高估它们的分量都不过分。

耶鲁公开课 - 弥尔顿课程节选

He wants you to finish everything by tomorrow, but you think it's impossible.

他想让你在明天之前把所有事都做完，但你觉得这肯定是不可能的。

How can I 课堂 - SpeakingMax英语口语达人

We can speculate about the causes, but it's impossible to give a single definitive answer.

BBC: Why do the Italians live longer than us?

It's impossible to ignore the rain amid the partying and anticipation at Churchill Downs.

NPR: DERBY LIVE: Orb Wins After Surging Among Bettors

The rooms aren't labeled, and it's impossible to tell what's behind the scary mystery doors.

WSJ: Steam Heat, Vodka and a Sound Thrashing