详细解释:n. 信笺上方的印刷文字, 印有抬头的信笺
英语解释：
名词 letterhead:
a sheet of stationery with name and address of the organization printed at the top详细解释：
let.ter.head
n.（名词）The heading at the top of a sheet of letter paper, usually consisting of a name and an address.信笺抬头：一张信纸顶端的标题，通常由名称和地址组成Stationery imprinted with such a heading.印有这种抬头的信笺