So, we need a new kind of mechanics, which is quantum mechanics, which will accurately explain the behavior of molecules on this small scale.

所以我们需要一种新的力学，也就是量子力学，来解释在这个，小尺度下分子的行为。

youdao

This is not an objective definition, it is difficult to accurately explain in words.

这也没有一个客观的定义，很难用语言来精确说明。

youdao

So, we need a new kind of mechanics, which is quantum mechanics, which will accurately explain the behavior of molecules on this small scale.

所以我们需要一种新的力学，也就是量子力学,来解释在这个,小尺度下分子的行为。

麻省理工公开课 - 化学原理课程节选

Between five and ten times the size of the Bible (no one seems to agree on the exact size of the tax code), even IRS employs are unable to accurately explain basic tax code questions.

FORBES: Tax Talk 2012: Tom Miller

This may explain why the fish needs to swim so accurately.

BBC: Earth News - Giant bizarre deep sea fish filmed in Gulf of Mexico