- 屡试不爽 lǚshìbùshuǎng time-testedtried many times and always works; well-tried and never failing to give the same accurate result. In this context [[爽|爽|shuang3]] means to make a mistake or deviate
- 毫厘不爽 háolíbùshuǎng extremely accuratenot to deviate an iota; without the slightest error; just right
- 毫发不爽 háofàbùshuǎng to be perfectly accuratenot to deviate a hair's breadth; extremely accurate without the slightest error
- 报应不爽 bàoyìngbùshuǎng retribution never failsDivine retribution is unfailing; one is inevitably punished for one's misdeeds.
- 丝毫不爽 sīháobùshuǎng perfectly accurate(idiom) perfectly matching; without the slightest error or discrepancy; very reliable
- 纤毫不爽 xiānháobùshuǎng to be extremely accurateto be free from the slightest error; to not differ by even a hair's breadth
