蠹

齿蠹

chǐ dù

(archaic) tooth decay

朽蠹

xiǔ dù

to decay and be eaten by worms etc

国蠹

guó dù

traitor

小蠹

xiǎo dù

bark beetle (zoology)

巨蠹

jù dù

public enemy number one

户枢不蠹

hù shū bù dù

lit. a door hinge never becomes worm-eaten

书蠹

shū dù

bookworm (literal and figurative)

木蠹蛾

mù dù é

wood moth

流水不腐，户枢不蠹

liú shuǐ bù fǔ , hù shū bù dù

lit. flowing water does not rot, nor a door-hinge rust (idiom)

淄蠹

zī dù

to be worn out

禄蠹

lù dù

sinecurist

苹果蠹蛾

píng guǒ dù é

codling moth (Cydia pomonella)