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日焼け， 日やけ， 日焼， 陽焼け， ひやけ
1. sunburn, suntan, tan
2. becoming discolored from the sun (e.g. of paper), yellowing
3. drying up (of a river, field, etc.)
tbd
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
