关于“picnic野餐”的英语表达，综合多个权威来源整理如下：

一、基础句型

计划与邀请

- "Let's have a picnic in the park."（我们在公园野餐吧）

- "I'm looking forward to our picnic."（我期待我们的野餐）

- "Would you like to join us for the picnic？"（你愿意和我们一起野餐吗？）

准备与分工

- "Dad is packing the sandwiches, and I'll get the blanket."（爸爸在装三明治，我去拿毯子）

- "We need to bring forks, plates, and a soccer ball for the picnic."（我们需要带餐具、足球和野餐垫）

- "Mom is making a fruit salad while Dad sets up the picnic area."（妈妈在做水果沙拉，爸爸在布置野餐区）

二、场景描述

自然环境

- "The picnic was held under the shade of tall trees by the river."（野餐在河岸大树下举行）

- "We chose a sunny day for our picnic to make the most of the weather."（我们选了一个晴朗的天气去野餐）

- "The sound of birds chirping added to the pleasant atmosphere of the picnic."（鸟儿的鸣叫为野餐增添了愉悦氛围）

活动内容

- "After lunch, we played soccer and had a swim in the river."（午饭后我们踢足球并在河里游泳）

- "We made sandwiches with fresh tomatoes and cucumbers for lunch."（我们用番茄和黄瓜做三明治吃午饭）

- "Roxy brought the bear plushie, and Andy couldn't stop playing with it."（Roxy带了熊玩偶，安迪不停地逗弄它）

三、注意事项

突发情况

- "Rain put a damper on our picnic plans, so we decided to move it indoors."（雨下了一夜，我们只好改在室内进行）

- "We forgot the sunscreen, but it's not a big deal since we'll be in the shade."（我们忘了防晒霜，但好在有树荫）

趣味互动

- "Suzie, the youngest, was given a piece of pie by everyone."（最小的苏西被大家轮流喂派）

- "Daddy Pig surprised everyone with a homemade strawberry cake for dessert."（猪爸爸带来了妈妈做的草莓蛋糕当甜点）

这些表达涵盖计划、准备、场景及互动等多个维度，可根据具体语境灵活运用。建议结合口语化表达和细节描写，使对话更生动。