letterhead的复数形式怎么写？

n.信笺上方的印刷文字，印有抬头的信笺...

Colleagues at work enjoy having a letterhead with their name at the top.在职的同事可把其名字印在信头之上。When he gave her the letter, she immediately recognized the letterhead.当他把信给她时, 她马上认出了信笺的信头.Please provide evidence on original let...

letterhead的音标：letterhead的英式发音音标为：['letəhed]letterhead的美式发音音标为：['letərhed]...