phenetic

例句：

1. 1. The study of the phenetics of language change is a complex field.
   研究语言变化中的同义词现象是一个复杂的领域。
2. 2. The phenetics ofthis species are not well understood.
   这种物种的同义词现象尚未充分理解。
3. 3. Thephenetics of the plant's growth patterns have been studied extensively.
   对植物生长模式的同义词现象进行了广泛研究。