Blinking helps （）the surface of the eye with tears, washing away dust and other irritants and keeping the sight clear.
A.indicate
B.fabricate
C.illunimate
D.lubricate
正确答案：lubricate
Blinking helps （）the surface of the eye with tears, washing away dust and other irritants and keeping the sight clear.
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Tear ducts（泪腺）operate on a normal basis to（）and protect the eye. When you have an emotion, they overact and create tears.（lubric
The old entrepreneur didn't （）any of his employees during that serious recession, which won him high respect in local co
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