Vocabulary consisting only from characters you are able to read
欠点
ketten
faults/defect/weakness/(P)leda1
億
oku
(num) 100,000,000, hundred millionjlpt4
型
kata
(1)model, type (e.g. of machine, goods, etc.), (2)type, style, pattern, (3)mold (mould), template, model, (4)kata (standard form of a movement, posture, etc. in martial arts, sport, etc.), (5)for jlpt3
係数
keisuu
(math) coefficient, factor, proportional constantmix