sau1 haau6收效
Jyutpingsau1 haau6
Yalesāu haauh
Definition
An intended effect, result, or efficacy of an action.
neutralworkother
How it's used
Focuses specifically on the attainment of a desired outcome or result after an effort has been made. It is almost exclusively used in negative constructions like 冇收效 or 未見收效 to describe failed attempts or stalled progress. While it sounds slightly more formal than everyday speech, it is frequently used in professional or serious contexts to discuss the success rate of strategies or treatments.
Examples
This method has been tried for a long time but has had no effect.
After doing all this, has it actually had any effect?
Related words
Common mistake
Do not confuse this with 效果, which is a neutral noun for any kind of result or effect. 收效 implies that an effort was invested to achieve a specific goal, making it closer to the idea of being effective or yielding results.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
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Grammar guides
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.
- In 30 secondsThe whole language at a glance. No tenses, no plurals, six tones, sentence particles. Read this before you dive into any specific topic.
- ParticlesSentence particles add tone, emotion, and nuance. Learn the most common particles in Cantonese and how to use them.



