英文备忘录的格式通常包括以下几个部分：

标题：

Memo

收件人：

To: [收件人全名]

发件人：

From: [发件人全名]

发文日期：

Date: [当前日期]

事由：

Subject: [具体主题]

正文：

Body

正文部分应简明、确切，直入主题，列出最重要的信息，然后可以具体说明事由、情况，提出意见和建议等。

英文备忘录的示例：

```

Memo

To: All Employees

From: [Your Name], [Your Position]

Date: [Today's Date]

Subject: Upcoming Training Session

I am writing to inform all employees that we will be holding an upcoming training session on [Topic of Training] on [Date of Training]. The session will be held at [Location] and will last for [Duration of Training]. Please make sure to attend as the training is crucial for your professional development.

Thank you!

```

请根据实际需要调整上述格式和内容