to register or create an account on a website
在网站上注册或创建帐户 (zài wǎngzhàn shàng zhùcè huò chuàngjiàn zhànghù)
"You should sign up to receive our newsletter."
"你应该sign up以接收我们的时事通讯。" (Nǐ yīnggāi **sign up** yǐ jiēshōu wǒmen de shìshì tōngxùn.)
to focus your attention fully on something important
to stop blaming yourself for past mistakes
to include an item in your online shopping cart
to support one person or group in an argument or conflict
to respond quickly and angrily to criticism
to fall behind others in progress or development
