Vocabulary consisting only from characters you are able to read
主に
おもに
mainly, primarilymix
丸める
まるめる
to make round, to round off, to roll up, to curl up, to seduce, to cajole, to explain awayichidan, verb, vtrans
一次(の)
いちじ(の)
first/primary/linear (equation)/first-orderadj, leda1