essential travel documents
必备旅行证件
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Hand luggage was confined to money, travel documents, baby milk and food and essential medical items, which had to be carried in transparent plastic bags.
乘客手中只能拿钱、旅行文件、婴儿牛奶和重要的药品，这些物品都必须放在透明的塑料袋里。
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