to sign in
01
登录, 登入
to enter a username and password in order to gain access to a website, computer, etc.
Transitive
例子
After you sign in, you'll have access to exclusive content.
登录后，您将可以访问独家内容。
He was unable to sign in because he forgot his password.
他因为忘记密码而无法登录。
02
登录, 注册
announce one's arrival, e.g. at hotels or airports
