backdrop noun
ADJ. dramatic, magnificent, perfect, picturesque, romantic | economic, historical, political
VERB + BACKDROP have | provide
PREP. against a/the ~ of The conference begins this week against a backdrop of unmitigated gloom. | ~ for The Alps provided the perfect backdrop for a romantic holiday. | ~ of The large bay has a superb backdrop of mountains. | ~ to War is more than just a dramatic backdrop to the novel.
You can also check other dicts: backdrop (English, 中文解释 ), wordnet sense, Collins Definition