-----------------------------------
死に掛ける， 死にかける， しにかける
1. to be dying, to be about to die, to be close to death
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
