A把损伤的零件放在干净的地方。
B把拆下的零件放在隔离的表面上。
C将拆下的零件放在干净的表面上。
Put the removed part on a clean surface.
Put a transparent sheet of plastic on the surface.
He put his hand on the surface of the stone. It __________ cold.
Apply sealant on the outer surface
Put the sling on the shackle.
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