例句 1。 The changes in daily and seasonal climates occurred before the retreat of the seas back into the major ocean basins。 日常和季節性的氣候變化發生在海水退回到主要的海洋盆地之前。
2。 The warming or cooling of the Earth; changes in seasonal fluctuations or ocean currents and changing positions of the continents are supposed to be the reason of the mass extinction。 地球變暖或變冷,季節性變動或洋流的改變,以及大陸板塊位置的改變都被認為是大滅絕的原因。
secure[s?'kjur]v。 獲得;確保
例句 1。 By singing loudly; the birds could possibly secure more food and result in faster growth or larger size。 透過高聲鳴叫,鳥兒或許可以得到更多的食物,這樣就可以生長得更快,體型也變得更大。
2。 Although dry periods forced people to move south; they returned once their food supply was secured。 儘管乾旱期迫使人們向南遷移,但是當糧食的供應得到保障時,他們就會返回。
3。 The situation required that they must exploit larger areas of land to secure the same amount of food; clothing; and other necessities。 形勢要求他們必須開發更大面積的土地以保證獲得相同數量的食物、衣服和其他必需品。
要點 我們都很熟悉secure作為“確保安全”的含義,如:secure a place;但是要注意這個詞表示“獲得”的含義也很常見,比如:secure food“獲得食物”。
settle['setl]v。 安定;定居;解決
搭配 settle down 平靜;定居,過安定的生活
例句 1。 Microscopic organisms settle to the seafloor and accumulate in marine mud。 微生物定居在海底,並積聚在海泥中。
2。 Contrary to the arguments that much of the Pacific was settled by Polynesians accidentally marooned after being lost and adrift; it seems reasonable that this feat was acplished by deliberate colonization。 有說法認為,因意外迷路和漂泊而最終孤立無援的波利尼西亞人在太平洋的大部分地區定居,相反的說法則認為這些功績是透過有目的的殖民遠征而實現的。
3。 His hypothesis received support for the fact that the greatest diversity in native American languages occurs along the west coast; suggesting that this region has been settled the longest。 他的假設得到了支援是基於這樣的事實:美國本土語言的多樣性出現於西海岸,意味著這裡是人們最早定居的地方。
settlement['setlm?nt]n。 解決;住宅區;定居
例句 1。 The settlement was inhabited