七是一个神秘的幸运数字，在语言学上怎么使用呢？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.lucky (adj.)幸运的，好运的
A lucky guy won the contest.
一个幸运儿贏了比赛。

2.favorite (n.)受宠的人，亲信
Lester, the second son, was his father's favorite.
二儿子莱斯特是他父亲的宠儿。

3.control (v.)控制，支配，管理
She is now skillful enough to control the machine.
现在她已有了足够的技术可以操纵这台机器了。

4.competitor (n.)竞争者，对手,敌手
The two friends were close competitors for the class presidency.
那两位朋友在争当班长一事上是竞争对手。

5.immersed (adj.)浸入的，专注的
He immersed himself in his studies.
他完全埋头于学习。

6.fascinated (adj.)着迷的
I am fascinated by the beautiful scenery of foreign lands.
方外的美景让我十分向往。

7.segment (n.)部分，部门，切片，断片
Our company dominates this segment of the market.
我们的公司控制了这一部分市场。

8.borrow (v.)借，借入
Can I borrow a pair of scissors?
我能借把剪刀吗？