send sb doing 使进入(特定状态),迫使,使(后面还可接形容词）,这就相当于make
send sb to do 派遣某人干什么
比较：
A hail of fire from us sent the aggressors fleeing panic-stricken.
我们一阵炮火打得侵略者惊惶逃窜.
The news almost sent her mad.
这消息几乎使她发疯了.
He sent his son to return the books to the library.
他派他儿子把书还给图书馆.