喜欢每次刚收拾完，干净无灰的房间。
Like every time just pack up your, clean and free of ash room.
现在一个戴貂皮无沿帽的女人和一个穿灰衣服的先生正好在她面前相遇了。
And now an ermine toque and a gentleman in grey met just in front of her.
在认证全球无脊髓灰质炎之前，必须控制实验室库存，并确保妥善管理灭活脊灰病毒疫苗(IPV)生产地点的野生病毒。
Laboratory stocks must be contained and safe management of the wild virus in inactivated polio vaccine (IPV) manufacturing sites must be assured before the world can be certified polio-free.
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