entries → 正在
TSUMUGU · TOCFL 3 (est.) · 詞
正在 word · TOCFL 3 (est.)
正在 =
ㄓㄥˋ ㄗㄞˋ · zhèngzài
adv — in the middle of (doing); marks an action in progress

字源 FORM — what the parts do

right at, exactly (正好)zhèng
to be at, ongoing (在家)zài
正在,正好的正,在家的在。