精讲课 笔记随视频锁定
提出观点

右侧笔记支持独立滚动。边听名师连读拆解,边对照右侧的语法事实与统计数据笔记。

The Butterfly Effect

butterfly 蝴蝶;蝶泳;举止轻浮的人;追求享乐的人

  • She is known as a social butterfly.社交蝴蝶(指举止轻浮或追求享乐的人)、交际花
  • The children chased a beautiful yellow butterfly in the garden.
  • He is an expert in the butterfly stroke.
have butterflies (in one’s stomach) 忐忑不安
  • It was the morning of the World Cup Final and most of the players had butterflies (in their stomach).
  • I always have butterflies before a major presentation.
  • She confessed to having butterflies in her stomach before her wedding.

chaos theory 混沌理论

Chaos theory suggests that small changes in initial conditions can lead to large-scale and unpredictable variation in the future state of the system.
  • The Butterfly Effect is a frequent metaphor for one aspect of chaos theory.
  • The principle illustrates how minor initial differences can be amplified, leading to widely diverging outcomes.

Beyond two or three days, the world's best weather forecasts are speculative, and beyond six or seven they are worthless.

Beyond prep. after …; later than … 

  • Beyond two or three days, the world's best weather forecasts are speculative.
after... 在...之后 After three days, the predictions become uncertain.
later than... 晚于... Any forecast later than two days is unreliable.
Exceeding v.超过(数量);超越,越出(权限) Exceeding two or three days, the accuracy drops significantly.

speculative 推测性的;投机的

  • If so, they would gain speculative profits. 这样的话,它们就有可能获得投机性收益。
  • Liquidity inflow fuelled speculative demand. 资金流入刺激投机性需求。
  • Venture capital transmogrified into speculative fever. 风险资本改头换面进入投机热。
be based on speculation / conjecture 基于推测 The reports are based on speculation, not facts.
be based on guesswork / guess work 基于猜测 Many long-range forecasts are simply based on guesswork.只是基于猜测

worthless 没有价值的(valueless、useless、...of no earthly use、totally useless)

valueless / useless 没有价值的/无用的 The old currency is now valueless. / The advice proved to be useless.
of no earthly use 毫无用处(语气重) That broken machine is of no earthly use to anyone.
totally useless 完全无用的 The new feature was totally useless for its intended purpose.