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It's all about chemistry. You either have it or you don't. In trailer land, Derek is starting to wonder what he got into… with t...
Meredith: [narrating] Before we were doctors, we were med students, which meant we spend a lot of time of studying chemistry. Organic chemistry, biochemistry, we learned it all. But when you're talking about human chemistry only one thing matters: either you've got it or you don't.
- Permalink: either you've got it or you don't.
Derek: What's new with you?
Meredith: I saw my half-sister half naked.
- Permalink: What's new with you? I saw my half-sister half naked.