1·For certain personal reasons I shall not be able to attend.
由于某种个人原因，我将不能出席。
—— 《牛津词典》
2·Some soils are actually too alkaline for certain plant life.
有些土壤的碱性，实际上对某些植物的生长是过高的。
—— 《柯林斯英汉双解大词典》
3·The prime minister is heading for certain defeat if he forces a vote.
如果首相强令大家投票表决，那他一定会遭遇失败。
—— 《柯林斯英汉双解大词典》
4·The courts were empowered to impose the death sentence for certain crimes.
法院有权因某些罪行判处罪犯死刑。
—— 《牛津词典》
5·"Yes, yes; for certain that was Kay," said Gerda.
“是的，是的；那一定是加伊。”格尔达说。
6·Other times, bad ideas can cause problems for certain groups of people.
有时候，坏主意会给某些群体带来麻烦。
7·For certain purposes, you can talk about slices, but the fundamental thing is the salami.
因为某种目的，你可以谈论切片，但根本的在于意大利腊肠本身。
8·If you want to target certain species of animals, then some parks are better than others for certain species.
如果你想看某些种类的动物，那么有这些动物的公园比其他公园要好。
9·It is also important to note that the study found only a correlation, as researchers did not prove for certain that optimism leads to a longer life.
还值得注意的是，该研究只是发现了一种关联，因为研究人员并不能明确证明乐观与长寿有必然联系。
10·Medical research often makes use of the forest's plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases.
医学研究通常利用森林中的动植物，毁坏这些物种可能会令研究人员找不到某些疾病的治疗药物。