Vacuum system

vacuum ['vækjʊəm]

n. 真空;空白;空虚;清洁; v. 用真空吸尘器清扫;

vac空+uum表名词 →空虚；真空

system ['sɪstəm]

n. 体系，系统;制度;身体;方法;

sy(syn-=together)+ste(to stand)→系统；体系；秩序；制度；方法

I do some work for Smith and Dale,Your company's accounting firm.

我为贵公司的会计顾问公司 Smith和Dale事务所里做一些工作。

What is wrong?

有什么不对吗？

OK, everyone. Less noise, please! Gather round and listen carefully. First we are going to search the beach and the rock pools. Let me remind you what we are looking for: seaweeds, fish, plants, all living things. When you find anything, make a note where

00在这里集合，游泳之后再吃午餐。别着急！我们有足够的时间。