Chengyu — O 4 idioms
- 藕断丝连藕斷絲連 ǒu duàn sī lián ngau5 dyun6 si1 lin4 lit. lotus roots may break, but the fiber remains joined (idiom); lovers part, but still long for one another
- 呕心沥血嘔心瀝血 ǒu xīn lì xuè au2 sam1 lik6 hyut3 lit. to spit out one's heart and spill blood (idiom); to work one's heart out; blood, sweat and tears
- 偶一为之偶一為之 ǒu yī wéi zhī ngau5 jat1 wai4 zi1 to do sth once in a while (idiom); to do sth more as an exception than the rule
- 偶语弃市偶語棄市 ǒu yǔ qì shì ngau5 jyu5 hei3 si5 chance remarks can lead to public execution (idiom)