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for taking care to take care with taking care of to take care of
Lo/200; Lo/250 Lo/300; Lo/400
more CD fewer news less sheep fewer goldfish
swim swims to swim swimming
lack of care old age the small fish tank lack of water
has offers requires receives
Lo/200； Lo/250； Lo/300； Lo/400。
lO^-6g lO^-9g lO^-12g lO^-15g 10^-18g
for taking care to take care with taking care of to take care of
has offers requires receives
lo/200； lo/250； lo/300； lo/400。
ε＝（Lt－Lo）/（Lo－Ld） ε＝（Lt－Lo）/（Lo－2Ld） ε＝（Lt－Lo）/（Lo－3Ld） ε＝（Lt－Lo）/（Lo－4Ld）
to take care take care to take care of taking care
has offers requires receives
lack of care old age the small fish tank lack of water
looking; swimming watching; swim to see; to swim looking at; to swim
has offers requires receives
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