不规则动词短语
中文翻译：同时
同义词：
['simultaneously', 'alternately例句：1. They are in-and-in discussing the project.（他们同时在讨论这个项目。）2. She is in-and-in studying for her exams.（她正在同时准备她的考试。）3. The children were in-and-in playing hide-and-seek.（孩子们在同时玩捉迷藏游戏。）']
例句：
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1. They are in-and-in discussing the project.
他们同时在讨论这个项目。
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2. She is in-and-in studying for her exams.
她正在同时准备她的考试。
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3. The children were in-and-in playing hide-and-seek.
孩子们在同时玩捉迷藏游戏。