look through看穿...,看透...,仔细审查...,无视某人
look over仔细检查
当检查审查时的差别：
He looked the proposals through before approving tthem.他在准备前仔细审查那些提议.
偏重看,检查和思考
We must look over the house before we decide to rent it.我决定租这房子前我们必须仔细查看.
偏重看,上上下下地看