- 千钧一发 qiānjūnyīfà to hang by a threada thousand pounds hanging by a single hair; used to describe a situation that is extremely critical or perilous
- 牵一发而动全身 qiānyīfà'érdòngquánshēn to affect the whole system(idiom) literally pulling a single hair makes the whole body move; used to describe how a tiny change in one part can impact the entire situation or system
- 一发千钧 yīfàqiānjūn in imminent perilLiterally meaning to hang a heavy weight by a single hair; used to describe a situation of extreme danger or a critical moment. Same as [[千钧一发|千鈞一髮|qian1 jun1 yi1 fa4]].
- 在千钧一发之际 zàiqiānjūnyīfàzhījì in the nick of timeat the critical moment; at a point where a situation is hanging by a thread
