骚乱 sāo luàn，汉语词语，是指混乱不安定；动乱 = riot
E.g. 孟加拉国西部城市拉杰沙希14日发生骚乱,造成至少30人受伤。mèngjiālāguó xībù chéngshì lājié shāxī 14 rì fāshēng sāoluàn,zàochéng zhìshǎo 30 rén shòushāng. = Riots broke out in the western city of Rajshahi in Bangladesh on the 14th, injuring at least 30 people.
少数 shǎoshù – 反义词(antonym) 是多数 duōshù (majority)
少数 = minority
少数族裔 是minority national
大规模dàguīmó - large scale形容事物范围广泛
E.g. 一个小小的计算失误，竟然引起了大规模的爆炸yī gè xiǎoxiǎo de jìsuàn shīwù，jìngrán yǐnqǐ liǎo dà guīmó de bàozhà = A small calculation error caused a large-scale explosion.
持续 chí xù，= continuous 意思是延续，继续；无间隔，连续不断。
E.g. 这次下雨，持续了一个半月。zhè cì xiàyǔ，chíxù liǎo yī gè bàn yuè. = This time it rained for a month and a half.