- 重点词汇
- 未解之谜
unsolved mystery; enigma; puzzle; conundrum; riddle
- 全球
the whole world; the globe; global; worldwide; universal
- 奇异
strange; odd; peculiar; unusual; bizarre; extraordinary; exotic; weird; remarkable
- 事件
event; thing; case; business; time; work; incident; happening; affair; scene; proceeding; occurrence