drum breaker starter
基本释义
形断路器
实用场景例句
日常对话
He had a grave expression on his face after the bad news.
在听到坏消息后，他的表情变得严肃起来。
校园生活
The professor delivered a grave warning about the importance of safety.
教授发表了关于安全重要性的严肃警告。
社会场景
The news of the grave accident shocked the entire city.
重大事故的消息震惊了整个城市。
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