虽然早产率一般被定义为在妊娠期达到37周之前的分娩，但并不能断定那样就是安全的。

But the preterm birth rate-defined as babies born before 37 weeks gestation-doesn't tell the whole story.

youdao

即使有一些部件会被循环利用，但我们不能断定，组成我们身体的每一部件都会死后永存。

So even though it's true that some kind of recycling takes place, we can't conclude that everything that's now a part of me will continue to exist afterwards.

youdao

更进一步说，因为星巴克没有披露是直接向农民收购还是通过中间商收购，我们还不能断定谁真正从这个繁荣的市场中获利。

Furthermore, because Starbucks does not disclose whether this is the direct price paid to farmers or to middle men, we can't say who the quality market boom is benefiting.

youdao

Well, it turns out that we could not identify, at least at that point, a cell culture that would serve as a host for vaccinia.

然而我们还不能断定,至少这个时候无法断定,这些被感染的细胞就是牛痘病毒的宿主

耶鲁公开课 - 生物医学工程探索课程节选

So even though it's true that some kind of recycling takes place, we can't conclude that everything that's now a part of me will continue to exist afterwards.

即使有一些部件会被循环利用,但我们不能断定,组成我们身体的每一部件都会死后永存

耶鲁公开课 - 死亡课程节选