✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿ 내내: from the beginning to the end continuously throughout, (all) through, all the time[way] 일년 내내: all the year round [through] 여름 내내: all the summer [through the summer] 저녁 내내: all evening [through the evening] 그 여자는 내내 긴장해 있었고 난 그 이유를 알아야 했다. She was nervous the whole time and I had to know why. ✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿❀✿ Have a Good Day ☺

the girl is always nervous the word 내내 is kind of "always"