Phenotype: The observable characteristics of an organism, resulting from the interaction between the organism's genotype and its environment.
表型：生物体的可观察特征，由生物体的基因型与其环境的相互作用而产生。
Phi Phenomenon: The simplest form of apparent motion, the movement illusion in which one or more stationary lights going on and off in succession are perceived as a single moving light.
似动现象：最简单的视觉运动形式，一盏或多盏静止的灯连续开或关被认为是一盏移动的灯。
Phobia: A persistent and irrational fear of a specific object, activity, or situation that is excessive and unreasonable, given the reality of the threat.
恐惧症：对某种特定的物体、活动持续且不合理的恐惧，或者对某种场景的过分的不合理的恐惧。
