A policeman getting his shoe wet testing the ice.

一个警察用脚去试探冰的厚度，弄湿了鞋子。

youdao

Only three days of my testing was in dry weather -- only one of Fernando's was wet.

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Testing rarely gives outside observers any clues to a car's true performance but the wet weather in Portugal meant gathering any sense of relative pace was difficult even for the teams.

BBC: F1 teams face testing times