千钧一发 (千鈞一髮) qiān jūn yī fā

qiān jūn yī fā set phrase a thousand pounds hangs by a thread; imminent peril; a matter of life or death
Domain: Idiom 成语
Notes: (CC-CEDICT '千鈞一髮'; Guoyu '千鈞一髮'; Mathews 1931 '千鈞一髮', p. 125)