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海かい外がい渡と航こうにはPCR検けん査さの陰いん性せい証しょう明めいが必ひつ要ようです。

Span Details

海かい外がい渡と航こう

overseas travel; foreign voyage

direction, time, indirect object, or target marker

は

topic marker

grammar

PCR検けん査さ

PCR test; polymerase chain reaction test

-> ＰＣＲ検査noun

possession, attribution, nominalizer, or nominal linker

陰いん性せい

negative (test result)

no-adjective, noun

証しょう明めい

proof; verification; certification

noun, suru verb

必ひつ要よう

necessary; needed; essential

na-adjective, noun