to secure or restrict access to something completely
完全保护或限制对某物的访问 (wánquán bǎohù huò xiànzhì duì mǒuwù de fǎngwèn)
"After detecting the breach, the company locked down all servers."
"在发现漏洞后，公司锁定了所有服务器。" (zài fāxiàn lòudòng hòu, gōngsī **suǒdìng** le suǒyǒu fúwùqì.)
to be tough in making a deal or negotiation
a small visible part of a much larger problem
to fail completely or embarrass oneself
surprised or shocked by something unexpected
to feel stress or pressure from a difficult situation
to take responsibility for doing something important
