讲座期间，后排有人一直咳嗽个不停。
During the lecture, someone was constantly coughing in the back row.
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constantly英 /ˈkɒnstəntli/|美 /ˈkɑnstəntli/
coughing英 /ˈkɒfɪŋ/|美 /ˈkɔfɪŋ/
解释
频率副词 constantly 插入 was 与 coughing 之间（中位），表示动作反复发生，带有厌烦语气。这是过去进行时 + 中位副词的典型用法。
During the lecture, someone was constantly coughing in the back row.
频率副词 constantly 插入 was 与 coughing 之间（中位），表示动作反复发生，带有厌烦语气。这是过去进行时 + 中位副词的典型用法。