yí
yī
lì
lì
láo
lǎo
shǔ
shǔ
shǐ
shǐ
huài
huài
le
le
yì
yī
guō
guō
zhōu
zhōu
1
lit. a piece of rat feces spoiled the whole pot of congee (idiom)
2
fig. one bad apple can spoil the whole bunch