to do
to utilize
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→zuo4yong4 • zuòyòng
effect
effects, function, action, affect
這 藥 的 作用 很 快。
The effects of this medicine are very quick.
咖啡 對 我 有 負面 作用。
Coffee has a negative effect on me.
運動 對 健康 有 重要 的 作用。
Exercise has an important effect on health.