为什么善于一心多用的人这么少？
那也不一定，研究表明，习惯一心多用的人实际上很难一下子把精神集中起来。
Or maybe not, because according to one study, habitual multi-taskers actually have trouble concentrating on more than one thing at once.
问题是，开车需要注意力集中，一心多用会让开车和坐车的人面临危险。
The problem with namely is driving requires focus, and multi-tasking while driving puts you and your fellow drivers at hazard.
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