实体描述 + 英语演示（咖啡机 / PowerOcean）
一、描述一个东西的三步法（以咖啡机为例）
- 说它是什么：a piece of technology / a coffee maker
- 说部件 + 部件功能（用 where / that / with 挂定语）：
- the portafilter — the part where the portafilter locks in（东西卡进去 = locks in）
- a metal basket that holds coffee grounds
- the water reservoir — the box that stores water
- control panel — an interface with buttons for operating the machine
- carafe — something that holds the brewed coffee - 说怎么用（动作链 + 语气词）：
Fill the metal basket with coarse ground coffee, take the portafilter and lock it into the group head. I like the clicking sound when I lock the portafilter into the group head — everything clicks, best moment of your morning. Put the carafe underneath, and just wait for the coffee to drain out — then you'll have a cup of cold brew made 100% by yourself.
要点：部件命名 + 功能动词（holds/stores/locks/drains/brews）＋ 比喻（It's like the salt on every dish, the condiment to every soup）＋ 后置定语（coffee made by yourself）
二、用英语做 PPT / 提案（PowerOcean 家庭储能示范）
结构：打招呼 → 议程 → 你的问题 → 我们的方案 → 下一步
1. 开场
Good morning! How's everyone doing? To be honest, today I'm really excited about what we are going to share today. What we'll cover today: your energy challenges → what PowerOcean is and how it works → safety & reliability → smart control & backup → investment, and what it means for you.
2. 讲问题（数据 + 金句）
Your bills keep climbing, and the grid isn't getting more reliable. Electricity prices: rising, year after year. Outages: rare — until the one day they aren't. Solar without storage: you lose the energy you don't use. Energy you send to the grid is money you never see again.
3. 讲方案（比喻先行）
Let's be honest — when it comes to outages, you need something to be your backup. Think of it this way: if you have solar but no storage, it's like water being poured into the ocean. Meet PowerOcean — a home energy system that thinks ahead: all-in-one (solar + storage + smart control), three-phase (built for bigger homes and heavier loads), modular battery stacks (start small, expand when ready). One system — every watt working for your home.
4. 关键技术一句话（逆变器 = 大脑和心脏）
The inverter is like the brain and the heart of the system. It converts direct current generated by solar panels into alternating current usable by home appliances, so that you can save a whole lot of money from your electricity bill.
三、PPT 常用表达清单
- What we'll cover today…（今天讲什么）
- Your bills keep climbing / rising, year after year（一年比一年高）
- Outages: rare — until the one day they aren't（反转金句）
- Think of it this way: it's like…（比喻开头）
- When it comes to…（就…而言）
- To put it simply…（简单说）
- Everything clicks — best moment of your morning（口语收尾）
核心：实体描述 = 部件 + 功能动词 + 比喻；提案 = 数据讲问题 + 比喻讲方案 + 明确下一步。