1、I'm sorry, but I can't be sure about that.
译文:不能保证会是这么个结果……但我会尽力做。
2、Be sure about the purpose of writing the feature story.
译文:确定好写特写的目的。
3、That is scary, and we cannot be sure about changes in the future.
译文:这是可怕的,因为我们无法确定未来会发生什么变化。
4、There were many I didn't know, and others I couldn't be sure about because they were so covered in green parasites.
译文:这里有许多我不认识的树,还有有一些树我没法确认,因为它们都覆盖在了密密麻麻的绿色藤蔓植物下。
5、Rewrite has its advantages however, in most situations it is a riskier option and the teams can never be sure about the outcome. As Joel on Software suggested
译文:重写也有其自身的优势,然而在很多情况下它是一种有风险的选择,并且团队可能永远都不确定产出物的情况。