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更新日期:2026-08-14
check in(或check someone in) arrive and register at a hotel or airport (到旅馆)登记入住; (在机场)办理登机手续: you must check in at least one hour before take-off 你至少必须在起飞前一小时办理登机手续 they check in the passengers. 他们为乘客办理登机手续。