New words：
seldom [ˈseldəm] adv.很少；难得；不常
seldom在句中的位置通常是紧靠动词，放在实义动词之前，特殊动词（如be动词、情态动词、助动词）之后。
Sample Sentences：
Barking dogs seldom bite.
My cat is seldom noisy at night.
This baby seldom cries unless he is tired.
It is seldom that we have a picnic in winter.
New words：
broadcast [ˈbrɔdˌkæst]
v.广播；播送（电视或无线电节目）；传播
n.广播节目；电视节目
Sample Sentences：
She broadcast the secret to everyone.
The interview was broadcast live across Europe.
The TV station will broadcast a new cartoon tonight.
The morning news broadcast starts at 7 AM.
The weather broadcast said it will rain tomorrow.
New words：
broad [brɔd] adj. 宽阔的；广阔的；广泛的
Sample Sentences：
The road is broad enough for two cars.
The book covers a broad range of topics.
He was six feet tall, with broad shoulders.
We saw a broad desert under the blue sky.
New words：
skill [skɪl] n. 技能；技巧；技术；技艺
Sample Sentences：
The job requires much skill and patience.
It is important to develop good study skills.
She learned some computer skills from her brother.
Emma has good social skills; she makes friends easily.
New words：
buffet [bʌˈfeɪ] n. 自助餐
Sample Sentences：
It's not polite to waste any food in the buffet.
Will you be having a sit-down meal or a buffet?
The cost of buffet would be a little more expensive. It's normally above 250rmb per person.