a
thedisease
I
thee
dthespeakermai
tai
sthatoverdoseoffluoridewillbackfiretohuma
bo
esAlthoughthereadi
gillustratesthatfluoridewillimprovebo
estre
gththelecturesaysoverdosewillcauseseriousdamagetohuma
bo
es
5
f六、伦勃朗的油画Thelecturerevisestheideaprese
tedi
thetextthatRembra
dtwas
otthe
artistwhopai
tedthefamouspai
ti
g