读句子，理解画线词语的含义，再造句。    

1．法国大雕塑家罗丹邀请奥地利作家斯蒂芬· 茨威格到他家里做客，饭后，罗丹带着这位挚友参观他的工作室。

挚友的含义：                                                                                                 

造句：                                                                                                                  

2．茨威格不仅拍手叫好，他向罗丹祝贺，祝贺又一件杰作的诞生。

杰作的含义：                                                                                                  

造句：                                                                                                             

计划是促进我国经济发展的最好手段。( )