首當其衝

to bear the brunt

head / chief / first (occasion, thing etc) / classifier for poems, songs etc

his / her / its / their / that / such / it (refers to sth preceding it)

to be / to act as / manage / withstand / when / during / ought / should / match equally / equal / same / obstruct / just at (a time or place) / on the spot / right / just at

at or in the very same... / suitable / adequate / fitting / proper / to replace / to regard as / to think / to pawn / (coll.) to fail (a student)

thoroughfare / to go straight ahead / to rush / to clash

powerful / vigorous / pungent / towards / in view of