以下是 "He will send an email this afternoon" 的几个同义句：
An email will be sent by him this afternoon.
He is going to send an email this afternoon.
He intends to send an email this afternoon.
This afternoon, he plans to send an email.
以下是使用同义词造句的例子：
He plans to dispatch an email later today.
Later in the day, he will forward an electronic mail.
This afternoon, he aims to transmit an email.
An email is scheduled to be conveyed by him in the afternoon.