9 or . 8 7 are possible, they actually aren't possible because even if we saw a total shielding, 1 the minimum z effective we would see is 1.

。39和0。87是可能的，实际上它们是不可能的因为即使,我们看到了一个完全的屏蔽，最小的有效电荷是。

麻省理工公开课 - 化学原理课程节选

If it's possible, use animals that don't feel pain, or use lower forms of life.

如果可以的话，请使用那些感觉不到疼痛的动物，或者用低级生物。

需要动物实验吗？ - SpeakingMax英语口语达人

If we learn from these experiences in ourselves, the question is no longer whether or not it's possible to experience it more and more in our lives.

如果我们自己吸取这些经验，那么问题就不再是，是否有可能,越来越多地体验它。

哈佛公开课 - 幸福课课程节选

If I have three, I have 16 x 4 or 64 possible choices, way more than enough.

那如果是三个碱基一组,那就有16x4种,六十四种组合,那就足够了

耶鲁公开课 - 生物医学工程探索课程节选