It is very convenient for passengers to use e-tickets when they are taking high-speed trains.

当乘客乘坐高铁时，使用电子票是非常方便的。

youdao

She never learned to use e-mail.

她从来没有学会使用e-mail。

youdao

Teach themselves enough English to use E-mail, chat and search engines.

自学英语到足以使用电邮，聊天和搜索资料。

youdao

Many people use E-mail,blogs,text messages and social Web sites like Facebook to keep in touch with their friends.

VOA: special.2009.02.06

I will use that to post information, maybe once in a while send an e-mail to the whole class.

我会在那上面发布通知,可能隔一段时间就会给全班群发一封邮件

耶鲁公开课 - 基础物理课程节选

And while I'm at school in class, I can use the e-books of the courses that I'm studying.

在学校上课的时候，我也可以使用那些我修的课程的电子材料。

What kind of实战 - SpeakingMax英语口语达人

Easy-to-use e-mail, calendar, and contacts for work or home, including Gmail, Hotmail, Exchange, and more.

ENGADGET: Kindle Fire HD 8.9 launched in Europe and Japan, gets permanent price cut in the USA

Kids will use e-mail to communicate with their parents, but it's seen as very stodgy.

FORBES: Just Speechless

Virtually everyone online in France, the UK and Germany use e-mail to communicate with friends and family.

BBC: Woman shopping online