to exit a website or online account safely
安全退出网站或在线账户 (anquan tuichu wangzhan huo zaixian zhanghu)
"Don’t forget to log out of your account when you finish your class."
"完成课程后不要忘记log out of你的账户。" (Wancheng kecheng hou buyao wangji log out of nide zhanghu.)
to study or investigate something deeply
to suddenly stop talking because of shyness or fear
to stay until the end of something that is long or boring
to gradually develop the ability to keep going for a long ti...
to be visible through something; to be partly seen
to make efforts to achieve a particular goal