shōu kuǎn
bào chou
suǒ qǔ
cí ài
____
xiū kuì
fēn ní
niè shǒu niè jiǎo
rú yuàn yǐ cháng
根冠的外层细胞不断磨损,但根冠从不会因磨损而消失,原因是( )
Happy New Year! The fireworks are nice.