It was difficult to maintain a secure foothold on the ice.

在冰上不容易站稳脚。

《牛津词典》

He found a secure foothold and pulled himself up.

他找到了一个稳固的踏脚处并爬了上去。

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Mathematical knowledge was certain and offered a secure foothold in a morass.

数学知识是确定无疑的，它给人们在沼泽地上提供了一个稳妥的立足点。

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Elsewhere, a round of analyst applause could also help DENN secure a foothold atop long-term resistance.

FORBES: Contrarian Plays For Profit In Domino's, Buffalo Wild And Denny's

Hampshire had to work hard to secure a first-day foothold after a tricky afternoon session against the home side's young seamers.

BBC: Pothas gives Hampshire early edge