Èr shí shìjì shì rénlèi kējì tūfēiměngjìn de shídài.
The 20th century was an era of rapid human technological advancement.
Tips
usage
Written with Arabic numerals even in Chinese prose - 20世纪 is more common than 二十世纪 in modern publications. Pronounced 'èrshí shìjì'. Use 上世纪 as a shorter synonym when the 21st-century viewpoint is obvious from context.
