Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
した under, belowjlpt5
切れる きれる (1)to cut well/to be sharp/ (2)to break (off)/to snap/to wear out/ (3)to be injured/ (4)to burst/to collapse/ (5)to be disconnected/to be out of/to expire/to sever (connections) with/ (6)to be shrewd ichidan, jlpt3, leda1, verb, vintrans
火口 かこう kráterleda1, shizen
せん 1,000, thousandjlpt5
冊子 さっし brožuraleda1
何度か なんどか several times, one or twicemix
少なくとも すくなくとも at leastjlpt3
足す たす addjlpt3, jlpt4, math
大学 だいがく universitygakkou, jlpt5, leda1
とし yearjlpt3, jlpt4, toki