With one group of students, the teacher provided strong "scaffolding"—instructional support and feedback.
在一组学生中，老师提供了强有力的“脚手架”，即教学支持和反馈。
But when the emotion that leads to stiffening the lip is more intense, and involves strong muscle tension, facial feedback may heighten emotional response.
但是当导致嘴唇僵硬的情绪变得更加强烈，并导致肌肉强烈绷紧时，面部表情反应就可能会增强情绪反应。
"Our analysis of snow and sea ice changes over the last 30 years indicates that this cryospheric feedback is almost twice as strong as what models have simulated," Flanner said in a press release.
我们关于过去30年的雪和海冰变化的分析表明，该冰冻圈反馈强度几乎是模式模拟的两倍。
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