段落最后一句应该总结你所写的，并引入下一个话题。
The last sentence of the paragraph should conclude what you just wrote about while leading into the next topic.
更可笑的是段落最后一句说的是某些食物可能对胎儿产生危害，真可谓离题千里了。
Another worrying point is that smoking just before the start of the pregnancy can affect the baby later. I heard recently that certain foods harm unborn babies.
最后一句写道，他们中只有一小部分人能取得重大的科学突破，而这些人又都是最坚忍之人。 请大家仔细学习这一段落。
Only a few of them can make great scientific breakthroughs, and all of these people are the most persevering.
最后一句写道，他们中只有一小部分人能取得重大的科学突破，而这些人又都是最坚忍之人。 请大家仔细学习这一段落。
Only a few of them can make great scientific breakthroughs, and all of these people are the most persevering.
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