柯林斯星级 ★☆☆☆☆ BNC词频 12631 COCA词频 8070 [计] 基准程序; 基准 n. a standard by which something can be measured or judged n. a surveyor's mark on a permanent object of predetermined position and elevation used as a reference point 复数: benchmarks 现在分词: benchmarking 过去式: benchmarked 过去分词: benchmarked 英汉双解字典由 ECDICT 提供