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must arrive; must be received
必着ひっちゃくを厳守げんしゅする。
Strictly observe the arrival deadline.
締切しめきりは今月こんげつ末まつ必着ひっちゃくだ。
The deadline is the end of this month (must arrive).
応募おうぼ書類しょるいは来週らいしゅう月曜げつよう必着ひっちゃくです。
Application documents must arrive by next Monday.