[làn]
[形]
（物质组织破坏或水分增加后松软） mashed; mushy; sodden; pappy
thoroughly cooked but not mushy
熟而不烂
mud; mire
烂泥巴
The beans are now soft enough to eat.
豆子煮烂了。
The beef is very tender.
牛肉烧得很烂。
（腐烂） rotten; decayed
spoiled fruits
烂水果
rotten meat
烂肉
（破碎； 破烂 ） torn to pieces; worn-out
pieces of torn paper
烂纸
broken glass
烂玻璃
tattered [ragged] clothes
破衣烂衫
The clothes are worn-out.
衣服穿烂了。
（头绪乱） messy
a messy account
一本烂账
[动]
（腐烂） rot; fester; decay
The root of the tree rotted away.
树根烂了。
The wound festered.
伤口烂了。
In such wet weather we must prevent the seedlings from rotting.
这样的阴雨天要防止烂秧。