watching brief

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˈwatching ˌbrief noun [countable] British English  SCLinstructions to someone to watch a situation carefully but not to become involved in it 监视，监督〔对某一情况进行监视，但自己并不介入〕 One of his responsibilities is to keep a watching brief on foreign broadcasts. 他的职责之一是监督外国广播节目。

Examples from the Corpus

watching brief• The Economics and Industry Group has a watching brief on the state of the brewing industry.From Longman Business Dictionarywatching briefˈwatching brief when someone is given the job of watching the progress of part of a business, a series of events, or a court case for someone elseHe has been hired to keep a watching brief on the company’s road transport operation. → brief

ˈwatching ˌbrief nounChineseSyllable  

instructions to someone Corpus not a Business but to watch to situation carefully

watching brief
ˈwatching ˌbrief noun [countable] British English
instructions to someone to watch a situation carefully but not to become involved in it:
    One of his responsibilities is to keep a watching brief on foreign broadcasts.

watching briefBrE /ˌwɒtʃɪŋ ˈbriːf/ 🔊NAmE /ˌwɑːtʃɪŋ ˈbriːf/ 🔊 noun [singular] the task of watching a group, especially a political organization, to make sure that it is doing everything it should and nothing wrong or illegal （尤指对政治组织的）监视，监督