當回事 [当－－]

Jyutping dong3 wui4 si6
Pinyin dàng huí shì

Definitions (CC-CEDICT)
  1. to take seriously (often with negative expression: "don't take it too seriously")
  2. to treat conscientiously
Definitions (Wiktionary)
  1. verb
    to take something seriously
    (syn.) 介意, 在意, 当作一回事, 放在心上, 介怀, 當作一回事, 在心, 介懷, 在乎