It is very thin now. Find a place where the ice has melted, then tie some logs together.

VOA: special.2010.06.26

There you would really think the formalists are on thin ice.

你会发现形式主义者的论点在这里如履薄冰。

耶鲁公开课 - 文学理论导论课程节选

The report also says the two thousand nine ice cover was thin.

VOA: special.2009.10.27