...lish-speaking countries说英语的国家整个短语相当于:people in these countries speak English。(people in these)countries作speak的主语。English作speak的宾语。ice-thawing visit 融冰之旅整个短语相当于:The visit can thaw the ice. visit作thaw的主语,ice作thaw...
The bus was held up by the snowstorm,thus causing the delay.后面一个句子的主语和前一个句子的主语bus并不相同,可以转换为 The bus was held up by the snowstorm,so it caused the delay 为什么还可以省略