challenging
/ˈtʃælɪndʒɪŋ/
Difficult in a way that tests your skills or effort.
“Organic chemistry is a challenging course, so plan to study every day.”
My Deck에 추가
/ˈtʃælɪndʒɪŋ/
Difficult in a way that tests your skills or effort.
“Organic chemistry is a challenging course, so plan to study every day.”
My Deck에 추가