There's always food in the freezer if need be.

如果需要，冰箱里总有食物。

《牛津词典》

They will act as my legal advisers if need be.

需要的话，他们会作我的法律顾问。

《柯林斯英汉双解大词典》

We'll bring him back to reason, by force if need be.

我们要使他恢复理智，必要时可用武力。

youdao

She could push her way if need be.

VOA: special.2009.09.05

If need be, occupy a throne, Where nobody can call you crone.

如果需要，占领一个王位，哪里没人会叫你老妇人。

耶鲁公开课 - 现代诗歌课程节选

Yeah, I think if you live outside of London and you need to commute, you got to get the train.

如果你住在伦敦市区外面，你需要坐火车上下班往返。

公共交通更方便 - SpeakingMax英语口语达人

" Those old engines are repaired if need be, he says, but never "powered up.

WSJ: Bespoke Wheels | Making It

If need be, he can demand that the discussion be tape-recorded to preserve an accurate record.

FORBES: The Duty To Investigate Pension Consultant Conflicts (September 1, 2001)

The United States must be able to make that call on its own, if need be.

CENTERFORSECURITYPOLICY: Center for Security Policy | President Bush Wants to Liberate Iraq, But the UN Security Council Does Not