in the first part of the 19th century怎么翻译

in the first part of the 19th century怎么翻译 in the early part of the 19th century 和 at the beginning of in the first century AD怎么翻译? 求讲解.The first part of the 20th century saw more great invent 英语翻译even in the first part of the nineteenth century,america in the second half of the 19th century The significance of critical realism in 19th century 英语翻译1 (in the middle of the 19th century ,the meaning of the in the second half of 18th century怎么翻译?这里的second是咋意思呢? 想要知道翻译 since the founding of Taipei in the 18th century, the story takes place at the turn of the 19th century in the At the turn of the 20th century.求翻译