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すぐ， 直ぐ
1. immediately, at once, right away, directly
2. soon, before long, shortly
3. easily, readily, without difficulty
4. right (near), nearby, just (handy)
5. honest, upright, frank, straightforward
立即，立刻
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効く， 利く， きく
1. to be effective, to take effect, to be good (for)
2. to work, to function well
3. to be possible (to do, use, etc.), to be able to
4. to taste (alcohol), to try
生效，起作用，适合（某事）；运作良好，运行顺畅；能够（做、使用等），能够；品尝（酒精饮料），试喝
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
