In 1982 , the Securities and Exchange Commission passed a rule allowing companiesto buy back their own stock.(译文:在1982年,美国证券交易委员会通过了一项规定,允许公司回购自己的股票。)问:这里的allowing companies to buy back their own stock. 是现在分词...
...ckdown, drag-out. And we're ready," Harris told media outlet TheGrio in an interview released Sunday, when asked how Trump promoting birther conspiracies signals the tactics his campaign will use.请问,这句话该怎么分析,signals是什么词性