您要查找的是不是：
- 要不是国会大厦被烧毁，这座大钟是不会被安装起来的。If the Houses of Parliament had not been burned down in 1834,the great clock would never have been erected.
- 要不是国会大厦在 1834 年被烧毁，这座大钟是不会被安装起来的。If the Houses of Parliament had not been burned down in 1834,the great clock would never have been erected.
- 如果荷兰不改变这个决定，中国同荷兰的关系肯定要倒退。If the Netherlands refuses to alter its decision,Sino-Dutch relations will definitely suffer a setback.
