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1.died out 灭绝
Dinosaurs died out millions of years ago.
恐龙几百万年前灭绝了。
2.biologist 生物学家
The biologist advanced a new theory of life.
这位生物学家提出了一个有关生命的新学说。
3.species 物种
The male of the species has a white tail.
这一物种的雄性有一条白色的尾巴。
4.artificially 人为的
The cows are artificially inseminated.
这些母牛被人工授精。
5."If we give nature a chance, if we give it time and space, it can take care of many things," he said.
take care of 照顾
Don't worry yourself about me, I can take care of myself
你别担心我，我能照顾好自己。
I take care of them to the best of my abilities
我尽我所能地照顾他们。
6."At the very beginning, I thought that lots of species that used to be here in the 1990s would have to be returned artificially.
At the very beginning 一开始
You should make a plan at the very beginning of the term.
你们应该在学期一开始就制定好计划。
We are looking for something basic at the very beginning level of a problem or mystery.
我们在问题或难题出现之初就寻找其根本原因。
