- compositional degeneracy
- 成分: composition; component part; ...
- 退化: become vestigial; degenerate ...
- 部分退化: partial regression
- 退化: become vestigial; degenerate; deteriorate; retrograde; devolution; retrogradation; retrogression; retroversion; regression; involution; degeneration; degenerescence; degeneracy; cataplasia; catagenesis; atresia 鸡的翅膀逐渐退化, 不会在空中飞行了。 the wings of the chicken have become vestigial; it can no longer fly. 土豆种了几年之后就会退化。 after a few years' planting, the quality of the potato crop deteriorates
- 部分退费: partial reimbursement
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