Vocabulary consisting only from characters you are able to read
山
jama
mountain, pile, heap, climax, critical pointjlpt5, shizen
特集
tokušuu
feature (e.g. newspaper), special edition, reportsuru
関与
kan'jo
participation, taking part in, participating in, being concerned insuru
省く
habuku
(1)ministry, department, (2)province (of China), (n-pref) (3)saving, conserving godan, verb, vtrans
必要(な)
hicujou(na)
(1)necessary/needed/essential/indispensable/(n) (2)necessity/need/requirement/(P) adj, leda1