我们知道，英文的一个字有很多用法，我们如何正确使用呢？Let's Go! 让我们跟着J博士一起学习！
本集核心英语单词及例句：
1.dictionary (n.)字典，辞典
Whose dictionary is this?
这是谁的字典？
2.traditional (adj.)传统的，传说的
It's a traditional motif.
那是个传统的图形。
3.frequently (adv.)频繁地,屡次地
This is a frequently-asked question.
这个问题屡次被提出。
4.memorize (v.)记忆
He is memorizing their appearances.
他是在记忆他们的外衷。
5.meaning (n.)意思，含义，意义
In the end, he finally knew the meaning of life.
他终于懂得了生活的意义。
6.operate (v.)运作
The machine is not operating properly.
机器运转得不正常。
7.factory (n.)工厂
They took him over to the factory.
他们把他带到了工厂。
8.joke (n.)玩笑
This joke made him really furious.
这个玩笑让他很恼火。
9.check up (n.)检査
Your car needs a check up.
你的车需要检查一下。
10.situation (n.)处境，情况
It's really an impossible situation.
这情况真是难以应付。
11.focus (v.)焦点，聚焦，集中
Students ought to focus on their studies.
学生应该集中精力学习。
12.master (n.)主人
The dog ran to its master.
那狗向它主人跑去。