BNC词频 47907 [计] 输入, 通信接口, 计算机工业, 配置项 [化] 化学电离 n a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second s being one more than one hundred 复数: cis 英汉双解字典由 ECDICT 提供