V to adjust (a musical instrument) to a particular pitch, esp a standard one (给乐器)定标准音
N adjustments made to an engine to improve its performance 为提升机器的性能对其调制
The shop charges up to $500 to tune up a Porsche.
该店调试一辆保时捷的收费高达$500。
Think of it as a tune up for your brain.
请把这看作是大脑的休养生息。
This sounds like the most harmonious way to tune up your mental faculties.
这听起来像是调节脑力最和谐的方法。
If they all look the same to the baby, the baby will just continue to tune out, but if the red looks different the baby will perk up.
如果对于婴儿来说,两种颜色没有差别,他就仍然不予理会,但如果他觉得红色与绿色不同,那他就会重新活跃起来
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