Forty-six million years ago, northwest Montana was a tropical forest of giant ferns, conifers and ginkgos.
Unable to lift off, it eventually sank to the bottom.
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Forty-six million years ago, northwest Montana was a tropical forest of giant ferns, conifers and ginkgos.
Unable to lift off, it eventually sank to the bottom.
重點單詞 | 查看全部解釋 | |||
sap | [sæp] |
想一想再看 n. 半穿甲的(燒結鋁粉); the liquid wi |
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eventually | [i'ventjuəli] |
想一想再看 adv. 終于,最后 |
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academy | [ə'kædəmi] |
想一想再看 n. 學院,學術,學會 |
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tropical | ['trɔpikəl] |
想一想再看 adj. 熱帶的,炎熱的,熱帶植物的 |
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contained | [kən'teind] |
想一想再看 adj. 泰然自若的,從容的;被控制的 v. 包含;遏制 |
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extinct | [iks'tiŋkt] |
想一想再看 adj. 滅絕的,熄滅的,耗盡的 |
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compound | ['kɔmpaund] |
想一想再看 n. 混合物,復合詞 |
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molecule | ['mɔlikju:l] |
想一想再看 n. 分子 |
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charismatic | [.kæriz'mætik] |
想一想再看 adj. 有魅力的 |
聯想記憶 |