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できる， 出来る
1. to be able to do, to be possible, to be permitted (to do)
2. to be good at, to do well, to be proficient (in), to be capable
3. to come into existence, to form, to appear, to come up (of a matter), to be born, to make (a friend), to get (a girlfri...
(表示)能力、可能、允许；精通、熟练、擅长；建、建成、建立……；完成、准备好了
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
