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Span Details
ペニシリンショック
penicillin shocknoun
は、
topic markergrammar
まれ
rare; uncommon; seldom-> 稀na-adjective
に
adverbial form after a na-adjectivegrammar
命に関わる
life-threatening; a matter of life or deathexpression, verb
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb