请问为何11和America之间没逗号？整段话的主谓宾是？

When Fred Trump was 11 America entered the first world war and a period of intense anti-German sentiment followed, abating in the interwar years and then flaring up again during the second world war.

请问为何11和America之间没逗号？整段话的主谓宾是？

When Fred Trump was 11 America entered the first world war and a period of intense anti-German sentiment followed, abating in the interwar years and then flaring up again during the second world war.

请问为何11和America之间没逗号？

【答】逗号表示停顿，不表示句子的结束。在从句和主句之间，需不需要逗号都是对的：

1. When Fred Trump was 11 America entered the first world war...

2. When Fred Trump was 11, America entered the first world war...

翻译：“在弗雷德·特朗普11岁时，美国参入了首次世界大战......”

整段话的主谓宾是？

【答】America（主语） entered（谓语） the first world war （宾语）

and a period of intense anti-German sentiment（主语） followed（谓语）：跟前一分句并列。

abating in the interwar years and then flaring up again during the second world war：两个并列的目前分词短语，作随着状语。