an email address is made up of three parts: the username, the "@" symbol, and the domain name. the username is the name that the user chooses for their email account. it must be unique and should be easy to remember. the "@" symbol separates the username from the domain name, which is the name of the email server that receives the user‘s emails.

to write an email address in english, the format is: username@domain.com. for example, if the username is "jdoe" and the domain name is "gmail.com," the email address would be jdoe@gmail.com.

when choosing an email address, it‘s important to consider its purpose. for personal use, you can choose any username that you like, as long as it‘s appropriate and easy to remember. however, for professional use, it‘s best to choose a username that reflects your name or your business name. this will make it easier for others to remember and find your email address.

here are some tips for choosing a professional email address:

1. use your name: if you‘re creating an email address for business or networking purposes, it‘s best to use your name as your username. this will help people remember your email address and make it easier for them to find you.

2. keep it simple: your email address should be easy to remember and easy to type. avoid using long or complicated usernames that are difficult to spell or remember.

3. use a professional domain name: if you‘re creating an email address for business or professional use, it‘s best to use a professional domain name, such as your company name or your own website domain. this will make your email address look more professional and trustworthy.

4. avoid using nicknames: while it may be tempting to use a nickname or a funny username for your email address, it‘s best to avoid this for professional use. stick to using your real name or your business name to maintain a professional image.

in conclusion, email has become a crucial mode of communication in today‘s digital age, and email addresses are an essential component of this communication. to write an email address in english, it‘s important to follow the standard format of username@domain.com. when choosing an email address, it‘s important to consider its purpose and to choose a professional username and domain name that reflect your name or your business name. by following these tips, you can create a professional and easy-to-remember email address that will make it easier for others to contact you.