plasticize
🇺🇸
/ˈplæstɪsaɪz/
🇬🇧
/ˈplæstɪsaɪz/
to make a substance soft and moldable by adding another substance
The manufacturer plasticizes the rubber by adding a special chemical to it.
制造商通过添加一种特殊化学物质使橡胶变软。