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