蹲: to crouch, to squat, to stay (somewhere)...
迟钝: slow in one's reactions, sluggish (in movement or thought)...
万一: just in case, if by any chance, contingency...
歌声: singing voice, original voice of a poet...
演变: to develop, to evolve, development, evolution...
西班牙语: Spanish language...
反: contrary, in reverse, inside out or upside down, to reverse, to return, to oppose, opposite, against, anti-, to rebel, to use analogy, instead, abbr. for phonetic system...
匆匆: hurriedly...
印刷术: printing, printing technology...
如何: how, what way, what...
