Chinese speakers, please tell me... ?

This is a part of lyrics of a song.... is it Mandarin? And is everything in the same language?
/I don´t need translation... I just want to know which dialect is this/

Thank you a lot

1) 解开我最神秘的等待
星星坠落风在吹动
终于再将你拥入怀中
两颗心颤抖
相信我不变的真心
千年等待有我承诺
无论经过多少的寒冬我决不放手
jie kai wo, zui shen mi de deng dai
xing xing zhui luo fong zai chui dong
zhong yu zai jiang ni yong ru huai zhong
liang ke xin chan dou
xiang xin wo bu bian de zhen xin
qian nian deng dai yao wo cheng nuo
wu lun jing guo duo shao de han dong
wo jue bu fang shou


2) 现在紧抓住我的手闭上眼睛
请你回想起过去我们恋爱的日子
我们是因为太爱
所以更使得我们痛苦
我们连"爱你"这句话都无法讲
ijen naye soneul chapgo neuneul kabwayo
uri saranghaeddon naldeud senggaghaebwayo
uri nomu saranghaesso apassod neyo
soro saranghangdan malgo motheson neyo

3) 夢中人熟悉的臉孔 你是我守候的溫柔
就算淚水淹沒天地 我不會放手
每一刻孤獨的承受 只因我曾許下承諾
你我之間熟悉的感動 愛就要甦醒
meng zhong ren shu xi de lian kong, ni shi wo shou hou de wen rou
jiu suan lei shui yan mo tian di, wo bu hui fang shou
mei yi ke gu du de cheng shou, zhi yin wo cheng xu qia cheng nuo
ni wo zhi jian shu xi de gan dong, ai jiu yao xing xing

4) 萬世滄桑唯有愛是永遠的神話
潮起潮落始終不悔真愛的相約
幾番苦痛的糾纏多少黑夜掙扎
緊握雙手讓我和你再也不離分
wan shi cang sang wei you ai shi yong yuan de shen hua
chao qi chao luo shi zhong bu hui zhen ai de xiang yue
ji fan ku tong de jiu chan duo shao hei ye zheng zha
jin wo shuang shou rang wo he ni zai ye bu li fen


***I guess the 2 isn´t Chinese...