4. a. 200 and 400 million years
b. 10 million years
c. CH4
d. 70
e.? 350 F
f. 700 F
g. 1112 F
h. over 900 F
a. D
b. E
c. F
d. B
e. G
f. C
g. A
學(xué)習(xí)這篇文章對(duì)我來(lái)說(shuō)比較困難悄窃。最根本的原因是詞匯量不夠翻譯不通句子倚搬，不能理解文章的深層含義丧蘸〈夯簦花很多時(shí)間查找陌生的單詞。通過(guò)閱讀文章基本翻譯后的文章指攒，不僅了解了心理學(xué)的知識(shí)慷妙，開拓了不熟悉的領(lǐng)域，還認(rèn)識(shí)了很多陌生的單詞允悦。
Learning this article is more difficult for me. The most fundamental reason is that the amount of words is not enough to translate sentences, can't understand the deep meaning of the article, and spend a lot of time looking up strange words. After the basic translation of the article through reading the article not only to understand the knowledge of psychology, opened up unfamiliar areas but also know a lot of strange words.
