calling on是call on的现在分词

call on

美 
英 
  • na.号召;指名要(某人)去干(某事);要求;访问
  • 网络调用
第三人称单数:calls on  现在分词:calling on  过去式:called on  
na.
1.
指名要(某人)去干(某事);请求,要求;号召
2.
访问

例句

释义:
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7.
I was about to call on you. I was just going to call on you. I was on the point of calling on you.