把词语补充完整，并解释画“——”线的词。    

1．无价(    )宝    同归(    )尽    雪中(    )炭    势不可(    )    

     面不(    )色    (    )居乐业    耐人(    )味    (     )尔一笑

     稍纵(    )逝    随(    )所欲    运转自(    )    绞(    )脑汁

2．解释：

(1)                                                                                                     

(2)                                                                                                     

(3)                                                                                                  

浇灌水的时期：