邀请书的英语怎么说

邀请书的英文：
(a letter of) invitation

• in letter and in spirit
  在字面意义和精神实质上|无论形式和实际
• The letter was a forgery.
  这封信是伪造的。
• Post the letter through the slit in the letter box.
  把这封信从信箱的投信口投进去。
• Imprint a postmark on a letter =imprint a letter with a postmark
  盖邮戳于信上
• The letter is directed to him.
  这封信是写给他的。

• Whomever you invite will be welcome.
  你邀请的任何人都将受欢迎。
• He was upset at not being invited.
  人家没邀请他，他很不痛快.
• A Bad padlock invites a picklock
  坏锁招人撬
• Entry to this competition is by invitation only.
  此次竞赛的参赛只凭邀请函。
• She was favored with an invitation.
  她受到了邀请。