Vocabulary consisting only from characters you are able to read
勉める
tsutomeru
to endeavor (endeavour), to try, to strive, to make an effort, to exert oneself, to be diligentichidan, verb, vtrans
返る
kaeru
(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
危うく
ayauku
(1)barely, narrowly, (2)almost, nearly mix