Unfortunately, The rules surrounding commas aren’t always clear. Comma placement is often a matter of style and personal (or editorial) choice. One could write an entire book on how to use commas effectively and correctly. Today, we’re just going to look at the basic rules. 确保定期更改密码，以减少被盗的风险。同时，妥善保管好您的登录凭据，避免泄露给他人。 Живопись: акварель, масляная ... https://rentry.co/mpin2igq