名词
中文翻译：开场
同义词：
['introduction', 'introductions例句：1. Our lecture will start with a lead-in on the topic of globalization.（我们的讲座将以对全球化主题的开场介绍开始。）2. The teacher gave us a lead-in before starting the lesson.（老师在开始上课前给我们做了一个开场介绍。）']
例句：
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1. Our lecture will start with a lead-in on the topic of globalization.
我们的讲座将以对全球化主题的开场介绍开始。
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2. The teacher gave us a lead-in before starting the lesson.
老师在开始上课前给我们做了一个开场介绍。
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3.The presentation had a great lead-in that set the tone for the rest of the talk.
演讲有一个很棒的开场介绍，为演讲的其余部分定下了基调。