n.活性物；主动动词
名词active的复数形式.
Hello, may I ask how much you need for a detergent actives? 你好，请问你需要活性物为多少的洗衣粉？
The effectiveness of anti-caries actives formulations based on sodium fluoride or sodium mono-fluorophosphate are confirmed. 对以氟化钠和一氟磷酸钠为基础的抗龋活性物配方的有效性给予了肯定。
