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よく， 良く， 善く， 能く， 好く， 克く
1. nicely, properly, well, skillfully, skilfully
2. frequently, often
3. I'm glad that you ..., thank you for ...
4. (you have) quite the nerve to, I don't know how you can ...
恰当地，妥当地，很好地，熟练地，娴熟地；常常，经常
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
