leveling
1.
san lấp mặt bằng
the height of something:
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The water level in the lake is much higher after heavy rain.
1.
san lấp mặt bằng
at the same height:
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The top of the tree is level with his bedroom window.
1.
san lấp mặt bằng
to make a surface flat:
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Level the wet cement before it sets.