质朴地 meaning in English

naively

I should want to come back , she said , with a quiet simplicity , heavy with conviction
“我一定要回来的。 ”她质朴地娴静地说，心里确信着她是一定要回来的。
As he made his inaugural speech in the east room of the white house ? “ just a little straight talk among friends ” ? the very flatness of his michigan vowels , his stumbles over words , his mistiness whenever he talked about prayers , seemed like a gale of fresh air
他在白宫东厅发表的就职演说? ?就像朋友之间闲谈一样朴实无华? ?质朴地密歇根式发音、不时磕绊几句，虽然当他谈论虔诚地祈祷和祈求之类的话时有些含混不清，但是就是这股质朴犹如一股清新之风注入当时混浊的政坛。