The debate over bilingual education centers on the issue of whether the United States should foster the idea of single common language, an idea, some believe, that has in the past been crucial in binding diverse constituencies together.
全部拷过来: crucial to This aid money is crucial to the government’s economic policies.
crucial in/to doing something The work of monks was crucial in spreading Christianity.
play a crucial role/part in something The city of Mycenae played a crucial role in the history of Greece. The conservation of tropical forests is of crucial importance .