没有人告诉她要小心毒气或者警告她要带上面罩。
Nobody had told her about toxic fumes or warned her to wear a mask.
我的一些记者同行说，在前几年的访问过程中，经常不得不返回带上面罩再冒险出门。
Some of my fellow journalists noted that during previous visits, they had to beat back the urge to don a face-mask before venturing outdoors.
所有人必须先换上一件从头到脚的白色清洁衣，确保将手表、戒指和其它首饰都摘掉，然后带上面罩。
They must first change into a head-to-toe white suit, making sure to take off all watches, rings, and jewelry, and put on a face mask.
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