in the crossing还是at the crossing

是in the crossing

He made the crossing from Cape Town to Sydney in just over twenty-six days. 

他从开普敦横渡到悉尼只用了二十六天多时间。

《柯林斯英汉双解大词典》

You take your life in your hands just crossing the road here. 

你在这里过马路简直是冒险玩命。