hei2 zok3 jung6起作用

Jyutpinghei2 zok3 jung6
Yalehéi jok yuhng

Definition

To start working; to take effect or kick in.

colloquialhealthdaily actions

How it's used

Focuses on the moment an effect begins to manifest, often used for medicine, strategies, or mechanical processes. It implies a transition from a state of inactivity to one of active influence. While it can be used in formal contexts, it is perfectly natural in daily speech when discussing whether a remedy or plan is showing results.

Examples

Have you taken the medicine? Has it started to kick in yet?

Common phrases

Common mistake

Avoid using this to mean simply to work or function in a general sense, as that is better expressed by 用得 or 運作緊. It specifically highlights the onset of an effect rather than the ongoing state of operation.

Grammar color guide

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