只管 (zhǐ guǎn) means “solely engrossed in one thing; just (one thing, no need to worry about the rest); simply; by all means; please feel free; do not hesitate (to ask for sth)”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
你只管放心去做吧。
Nǐ zhǐguǎn fàngxīn qù zuò ba.
Just go ahead and do it without worry.
Updated: