翻译：战争爆发后,他不得不放弃研究工作.（break out）
问题描述：
翻译：战争爆发后,他不得不放弃研究工作.（break out）
答
After the war broke out,he had to finish his research work.
翻译：战争爆发后,他不得不放弃研究工作.（break out）
After the war broke out,he had to finish his research work.