You would have it at maybe 180, 190 at a push.

油炸的话你可能会达到 180，190 度。

We have room for five people, maybe six at a push.

【push】我们有够五个人呆的地方，不得已时也许可以挤下六个人。

You may be pleased, I suppose, to have found two, and two who will not fail you at a push.

我想，您可能会很高兴找到了两个， 并且两个不会让您失望的人。

You could also say " members of society." You might be able to use " men and women" at a push.

您也可以说“社会成员”。您也许可以一键使用“男人和女人”。