为什么并列分句翻译成时间从句？有网友问，英语中没有 if，但翻译中有“如果”。今天看到这样一个句子：Robert had an accident in the lab. He was opening a bottle of acid and he spilt some on her hands. 罗伯特在实验室里出了事故，他在打开一瓶酸的时候，洒了一些在手上。这个句子的翻译用了“他在……的时候”，但英语句子并没有表示类似意思的连词（如 when, as, while 等），也没有表示类似意思的介词或其他短语，这样的翻译属于“意译””吧。请专家老师再举几例说明一下，让学生体会，非常感谢！好的。可以这样理解：当一个突然发生的动作 B，与一个正在发生的动作 A 并列时，这说明 B 发生在 A的过程中。在理解和翻译时，可以把 A 句视为时间从句，把 B 句视为主句。例如：He was opening a bottle of acid and (he) spilt some on his hands. 他在打开一瓶酸的时候，洒了一些在手上。I was wandering on the pavement and (I) found a wallet suddenly. 我在人行道上徘徊时，突然发现了一个钱包。Tom was reading a newspaper in his study and his sister came in. 汤姆正在书房看报时，他妹妹进来了。以上 3 句具有以下特点：1. A 动作为延续性动词；B 动作为终止性动词。2. A 动作用过去进行时；B 动作用一般过去时。3. A 动作在先，B 动作在后，位置不可互换。4.当并列句的主语相同时，第 2 句的主语可以省略。以上 3 句，可以把并列连词 and 去掉，转换为以下两种句式，意思保持不变： 【句式一】When he was opening a bottle of acid, he spilt some on his hands. When I was wandering on the pavement, I found a wallet suddenly. When Tom was reading a newspaper in his study, his sister came in. 以上 3 句，when 是从属连词引导时间从句，可以和主句交换位置，而意思保持不变。【句式二】He was opening a bottle of acid when he spilt some on his hands. I was wandering on the pavement when I found a wallet suddenly. Tom was reading a newspaper in his study when his sister came in. 以上 3 句，when 是并列连词，表示“正在此时”(= and just then, and suddenly)，when 后面的句子不得提前。
