its hanging by a thread
它命悬一线
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Since it began, its research scholars hanging by a thread, and has made very impressive results.
自它出现以来，对它进行研究的学者不绝如缕，并且取得了非常引人注目的成果。
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The ice shelf is hanging by a thread -- we'll know in the next few days or weeks what its fate will be.
CNN: Massive ice shelf on verge of breakup
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