日本語
nattoku suru
to consent : to agree ; to understand
せんせいの せつめいに なっとくできません。
I was not convinced by the doctor's explanation.
いいかげん(な)
irresponsible
いいわけする
to make excuses
いっしょうけんめい
hard ; as hard as one can
いやいやする
to reluctantly/unwillingly do something
いよく
motivation