whys

n.

理由，原因，目的；理由，原因，缘故( why的名词复数 )；

1. I told them the whys and wherefores of my action.
   我告诉他们我行动的理由。

On the whys and wherefores of E, P, and A.
Investigating the hows and whys of DNA endoreduplication.
Disentangling the "whys"from the "whats"of aggressive behaviour.
The Hows and Whys of Successful Pest Suppression by Spiders: Insights from Case Studies
Shared Leadership: Reframing the Hows and Whys of Leadership
INVITED SPECIAL PAPER: The hows and whys of cytoplasmic inheritance in seed plants
Spin-Based Quantum Computers made by Chemistry: Hows and Whys
Practical approaches to low density lipoprotein oxidation: whys, wherefores and pitfalls.
The pharyngeal critical pressure. The whys and hows of using nasal continuous positive airway pressure diagnostically.
Unsupervised pattern recognition: an introduction to the whys and wherefores of clustering microarray data.