subtleties
敏銳,微妙,陰險
Sub·tle·ty n.; pl. Subtleties
1. The quality or state of being subtle, or sly; cunning; craftiness; artfulness.
The fox which lives by subtlety. --Shak.
2. Nice discernment with delicacy of mental action; nicety of discrimination.
3. Something that is sly, crafty, or delusive.
Unlearned in the world's false subtleties. --Shak.
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