Definition: the main place where a person lives or works or where a business operates Level: C2
尽管我经常去纽约，但洛杉矶仍然是我的基地。
Although I travel frequently to New York, Los Angeles remains my ___base.
西雅图是探索太平洋西北地区的完美基地。
Seattle serves as a perfect ___base for exploring the Pacific Northwest.
这个沿海城镇是航运业的关键基地。
The coastal town functions as a key ___base for the shipping industry.
