So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.

对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。

麻省理工公开课 - 化学原理课程节选

"We haven't taken that first step, and that's what I relayed to Darrelle, " Idzik told Pro Football Talk.

WSJ: New Jets GM Idzik calls Revis to explain situation

Representative TANCREDO: No, I don't - I think for the first step if you just do this by attrition, you would see a really significant change in the number of people who are here illegally.

NPR: Tancredo on the Presidency, and Immigration

Bankruptcy relief on student loans isn't just fair, it's the first step to a more functional market in higher education.

CNN: Obama should push bankruptcy relief for student loans