- 重点词汇
- 远古
remote antiquity
- 时代
times; age; era; epoch; period in one's life
- 生命的
vital; zoetic; biotic
- 起源
originate (in/from); stem/come from; be derived from; origin; beginning; genesis; provenance; spring
- 解密
declassify; declassify secret documents; decrypt; decode; decipher
- 地球
earth; globe
- 年间
certain period of time
- 简史
sketch; outline; short/brief/concise history (of)