New words：
balance [ˈbæləns] n.余额，余数，结存；天平
Sample Sentences：
They were due to pay the balance on delivery.
The chemist measured the powder on a balance.
Don’t forget to check your phone’s data balance.
I'd like to check the balance in my account please.
The balance is a basic tool in physics experiments.
New words：
item [ˈaɪtəm] n.项目；一件商品（或物品）；新闻中的）一则、一条；条款
Sample Sentences：
What's the next item on the agenda?
The store offers free shipping for items over $50.
The lawyer reviewed each item in the agreement.
There was an item about the accident in the news.
New words：
practical [ˈpræktɪk(ə)l] adj.实际的；切实可行的；真实的；客观存在的impractical [ɪmˈpræktɪk(ə)l] adj.不明智的；不现实的；不切实际的
Sample Sentences：
Paul was dreamy and not very practical.
The book provides practical advice for job seekers.
She criticized the impractical plan.
Wearing high heels to climb a mountain is impractical.
New words：
chef [ʃef] n. 厨师,尤指主厨
Sample Sentences：
Try this new dish, created by our head chef.
The chef changes items on the menu each day.
James works as assistant chef at a fast food restaurant
item [ˈaɪtəm] n.项目；一件商品（或物品）；一则；条款
New words：
assist [əˈsɪst] v. 协助；帮助assistance [əˈsɪstəns] n. 帮助；援助；支持
Sample Sentences：
Can you assist me carry this box?
The nurse assisted the doctor during surgery.
He can walk only with the assistance of crutches.
She offered me practical assistance with my research.
practical [ˈpræktɪk(ə)l] adj.实际的；切实可行的；真实的；客观存在的