Before the film began, each woman was asked to help herself to a snack.

在电影开始之前，每个女士都应邀吃点小吃。

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Treat yourself to a snack.

奖励自己一口零食。

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It is customary to offer a drink or a snack to guests.

通常用饮料或小吃招待客人。

《柯林斯英汉双解大词典》

Everything, from pain to a snack or a joke, is there to be shared.

ECONOMIST: Out of misery, some extraordinary lessons

As part of its strategy to tap into the market for more nutritious convenience foods, the company is hoping people will pay a premium for a new pureed fruit product that it considers thick enough to be a snack rather than a beverage.

WSJ: PepsiCo's Tropolis Fruit Puree an Attempt to 'Snackify' Drinks

We saw a troubling example of this recently in a series of stories about how school districts in several states are trying to ban a snack food.

FORBES: Compliant Media Plays Its Role in Activists' War on Food