封口之物：一种物质，尤指似蜡或油灰的粘性剂，用来封闭、保存某物或防止潮气或空气的渗流。
A substance, especially an adhesive agent such as wax or putty, used to close or secure something or to prevent seepage of moisture or air.
封口之物：一种物质，尤指似蜡或油灰的粘性剂，用来封闭、保存某物或防止潮气或空气的渗流。
A substance, especially an adhesive agent such as wax or putty, used to close or secure something or to prevent seepage of moisture or air.
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