Vocabulary consisting only from characters you are able to read
止す
yosu
(after the -masu stem of a verb) to stop in the midst of, to leave undone; to cease, to abolish, to resign, to give upgodan, verb, vtrans
明らか
akiraka
obvious, evident, clear, plainmix
利く
kiku
(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
便利さ
benrisa
convenience, handiness, usefulnessmix