Vocabulary consisting only from characters you are able to read
加熱
かねつ
heating, application of heatsuru
改良
かいりょう
improvement, reformsuru
返る
かえる
(1)to return, to come back, to go back, (2)to turn over, (suf,v5r) (3)(after the -masu stem of a verb) (to become) extremely, (to become) completely godan, verb, vintrans
共に
ともに
sharing with, participate in, both, alike, together, along with, with, includingsuru
表す
あらわす
(1)to reveal, to show, to display, (2)to express, (3)to represent, to signify, to stand for, (4)to make widely known godan, jlpt3, verb, vtrans
反対
はんたい
opposition, resistance, antagonism, hostility, contrast, objection, dissension, reverse, opposite, vice versajlpt3, jlpt4, leda1, suru
対戦
たいせん
waging war, competitionsuru
治す
なおす
(1)to cure, to heal, (2)to fix, to correct, to repair, (aux-v) (3)to do over again (after -masu base of verb), (4)to replace, to put back as it was, (5)to convert (into a different state), to tra godan, jlpt3, verb, vtrans