```

Hello, this is [Your Name]. I am currently busy and temporarily unable to answer your call. I will reply to you as soon as possible. If you would like to leave a message, please do so.

```

或者，如果您希望更简洁一些，可以简化为：

```

Hi, this is [Your Name]. I'm busy but will reply soon. Please leave a message.

```

这些留言都表达了您当前无法接听电话，但承诺会尽快回复，并提供了留言的选项。您可以根据自己的需要调整留言内容。