a surprise test given without warning
未经警告的突击测试 (wú jīng jǐng gào de tū jí cè shì)
"Our teacher gave us a pop quiz today."
"我们的老师今天给了我们一个pop quiz。" (wǒ men de lǎo shī jīn tiān gěi le wǒ men yí gè **pop quiz**.)
something that seems promising at first but fails to deliver
Something intended to secretly undermine or bring harm from...
to continue doing or supporting something despite challenges
to set a limit on what is acceptable
to go out on patrol or begin a search for a suspect
to relax and do nothing
