懂中文 Dong Chinese

提纲挈领

tí​gāng​qiè​lǐng

to concentrate on the main points ; to bring out the essentials

Definitions

提纲挈领 (提綱挈領) 

tí​gāng​qiè​lǐng

to concentrate on the main points (idiom); to bring out the essentials

Sources