| 词汇 | call on |
| 释义 | call on 主要翻译 call on [sb] for [sth], call upon vtr phrasal insep (seek help)请求；向某人求助John called on his friends for support.约翰请他的朋友支持他。 call on [sb], call upon vtr phrasal insep (turn to [sb] for help) (某人)向…求助When you need help, then who can you call upon if not your friends?当你需要帮助时，除了你的朋友还能找谁? call on [sb] to do [sth], call upon [sb] to do [sth] vtr phrasal insep (request that [sb] do [sth])要求某人做某事The union called on the workers to support a strike.工会号召工人支持罢工。 call on [sb] vtr phrasal insep (visit [sb])拜访John called on Mary while she was in the hospital.玛丽住院时，约翰去看过她。 call on [sb] vtr phrasal insep US (teacher: pick a student to talk) (老师)让…回答问题The teacher called on me but I couldn't answer as I hadn't been listening.老师让我回答问题，但是因为我没有在听讲，所以回答不出。 复合形式： on call adj (available for duty)待命的；值班的；随叫随到的My family doctor is on call every Saturday night for patient emergencies.我的家庭医生每周六晚都会值班，以应对病人的一些突发情况。 |
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