When you send an e-mail you can also send a file as an attachment and that file can be a graphic, a program, a sound or whatever.

当发送电子邮件时，你还可以把一份文件作为附件发送，该文件可以是图片、程序、或声音文件等。

《柯林斯英汉双解大词典》

B: Yes.please be careful when you send it out.

B：是的，出货时请小心些。

youdao

Not a big price when you send a few dozen e-mails in a day.

当您一天中只发送几十封电子邮件时，这个代价并不大。

youdao

"When you are president of the United States, they do not send you the easy decisions;

VOA: standard.2009.12.15

When you buy a drug, you scratch the panel, you send a text message with the number that you see, and you get a response instantly at the counter if the drug is genuine or fake."

VOA: standard.2010.06.07

"It is a promise that as long as I am your Commander in Chief, I will only send you into harm's way when it is absolutely necessary, and with the strategy, the well-defined goals, the equipment and the support you need to get the job done,"

VOA: standard.2009.05.22

When you send an order into the marketplace, speed is a big part of best execution.

FORBES: Examining The Options Flash

When you send individual emails you can see immediately if the recipient opened it and watched the message.

FORBES: Talk Really Can Be Cheap

When you send the letter, Trupiano says, do your best to be tactful.

FORBES: 'I Quit!' How To Handle A Resignation With Class