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投げる， なげる
1. to throw, to hurl, to fling, to toss, to cast
2. to give up, to abandon, to throw away
3. to cast (a glance, shadow, doubt, etc.)
投掷，掷，抛，扔，投；放弃，认输，扔掉；投以(一瞥、阴影、怀疑等)
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
