Top Cover， Bottom Cover， And Cover Board

cover-to-cover translation

from cover to cover

with average cover {= WA Cover}

aluminum sow

artificial sow’s milk

as drunk as a sow

barren sow

breeding sow

brood sow

common sow thistle

corn sow thistle

Cross-sow

direct sow

directly sow

empty sow

Erhualian sow

exotic lactating sow

farrowing sow