托福词汇怎么背？从题目中理解是最好的方式之一。本托福词汇节选自TOEFL词汇题精选440题，希望对考生们的备考有所帮助。
Conventional computer models of the atmosphere have limited value in predicting short-lived local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms.
The word "subtle" is closest in meaning to which of following?
(A) complex
(B) regular
(C) imagined
(D) slight
正确答案： D
subtle
adj.微妙的;敏感的;狡猾的;巧妙的
[例句]Subtle shifts can be important.细微的变化可能很重要。