| 词组 | call on |
| 释义 | call on 1. call on sb to visit someone for a short time: ▪ He stopped in Chicago in order to call on an old friend. 2. call on sb AmE to ask someone in a class or group to answer a question: ▪ Adrian looked down at his paper, but Mrs. Danielson called on him anyway. ! Call upon is more formal than call on and is mostly used in writing 1. call on/upon sb to do sth to formally and publicly ask someone to do something: ▪ Russia called on NATO to end the bombing of Serbia. ▪ The conference passed a resolution calling on Western governments to cut pollution levels. ▪ I call upon the persons here present to witness the marriage of Sarah and James. 2. call on/upon sth/sb to use something or someone's help in order to achieve what you want: ▪ Our staff are able to call on the latest technology to help them in their work. ▪ The team has many other talented players whose skills it can call on. |
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