![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
strict/severe (1) In a_______ sense, frost refers simply to a temperature of zero degrees Celsius or less. (2) This is a school for children with_________ learning difficulties. (3) My parents were very _______with me when I was young. (4) The government is currently facing_______ criticism.