to rot, to decompose / to become corrupt

decay, putrefaction / corruption, such as political corruption

voluntarily; willingly

progress

to go forward, to advance, to progress / to improve, to progress

(rare) fruit

edible fruit that grows on trees or shrubs, such as oranges and apples, or sweet edible fruit that grows along the ground, such as strawberries and melons

Tang confectionery

dried fruit (small fruit that have been preserved by drying)

passion fruit flower