Vocabulary consisting only from characters you are able to read
万
まん
(num) 10,000, ten thousand, (adv) myriads, alljlpt5
便利さ
べんりさ
convenience, handiness, usefulnessmix
利く
きく
(1)to be effective, to show effect, (2)to do its work, to carry out its function well, (3)to be possible to use godan, verb, vintrans