Vocabulary consisting only from characters you are able to read
使う
つかう
(1)to use (a thing, method, etc.)/to make use of/to put to use/ (2)to use (a person, animal, puppet, etc.)/to employ/to handle/to manage/to manipulate/ (3)to use (time, money, etc.)/to spend/to consu godan, jlpt5, leda1, verb, vtrans
降下
こうか
fall, descent, (plane) landing, (atmos.) depressionsuru
大体
だいたい
general, substantially, outline, main point, approximately, aboutjlpt3
弱点
じゃくてん
weak point, weaknessmix