'N Sync was slow in getting out of the gate in the United States, but by early fall, two Top 40 hits (I Want You Back and Tearin' Up My Heart) had propelled12 the album to platinum sales.

“超级男孩”在美国起动较慢，但到初秋，两支跻身排行榜前40名的歌曲（《我想你回来》和《撕裂我的心》）促使专辑卖到了白金唱片的销量。

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psi So we're going to for psi, and before that, we're going to figure out that instead of n just that one quantum number n, we're going to have a few other quantum numbers that fall out of solving the Schrodinger equation for what psi is.

我们要讲到，但在这之前，我们已经知道了,主量子数，现在我们需要知道，其他一些,解psi的薛定谔方程,所需要的量子数。

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