1.the survival of the fittest 適者生存

例句：With the changes in the world's climate, dinosaurs died, but many smaller animals lived on. It was the survival of the fittest.

隨著世界氣候的變遷， 恐龍絕跡了， 但許多較小的動物卻繼續活了下來Is#wTm*w&Q5+-uJ。 這就是適者生存Z[2BAmi5G)guT,*iqQO。

2.be close to 接近于

例句：The second man was found at lunchtime, believed to be close to where he was working.

在中午時候第二具尸體被發現，靠近在他之前所工作的地點+CxZ9BT4&j。

3.species of life 物種

例句：Scientists estimate that there could be up to 100 million different species of life on the planet, of which only 2 million have been identified.

據科學家們估計，世界上大約有不小于10億種不同種類的生物，僅有2億種為人們所認識La_3KekPVa&7#%+3bKR。

4.natural selection 自然選擇

例句：Accordingly, if natural selection disappears from biology, its offshoots in other fields seem likely to disappear as well.

因此，如果自然選擇從生物學中消失，那么在其他分支領域內很可能也會消失D0Jji2+l*cc。