1 (wiktionary) 2 (zh.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Compounds Expand your vocabulary by studying more complex words built by the 'core words'.

HSK 2.0 (2010)	Gb	Pin	Eng
4	重点	zhong4 dian3	emphasis/ focal point/ priority/ key/ with the emphasis on/ focusing on
6	优先	you1 xian1	priority
6	当务之急	dang1 wu4 zhi1 ji2	top priority job/ matter of vital importance

HSK 3.0 (2022)	Big5	Gb	Pin	Eng
5	先後	先后	xiānhòu	early or late, priority, in succession, one after another
5	優先	优先	yōuxiān	preferential, preferred, priority
7	當務之急	当务之急	dāngwùzhījí	top priority job, matter of vital importance
7	重中之重	重中之重	zhòngzhōngzhīzhòng	of the utmost importance, of highest priority