解释下列词语并解释加粗的字。

1．驻足：                                                           

2．极目：                                                          

3．煞它风景：                                                                     

4．失之毫厘，差之千里：                                                                           

高聚物改性沥青自粘型防水卷材，施工温度应在5℃以上。( )