New Words：

gross [ɡroʊs] adj. 令人不快的;令人恶心的;使人厌恶的

Sample Sentences：

Don't pick your nose. It's gross.
What's this stuff? It looks gross.
‘He ate it with mustard.’ ‘Oh, gross!’
Don't you feel that the airport food is expensive and gross?

mustard [ˈmʌstərd] n. 芥末

New Words：

host [hoʊst] n. 主人;东道主;主持人

Sample Sentences：

Eason is a TV game show host.
The host kept pressing us to eat.
The host invited everyone to be seated.
The trolls want to be good hosts.

New Words：

while [waɪl] n.一会儿；一段时间

Sample Sentences：

Will you lend me your jacket for a while?
I'll be back in a little while(= a short time).
Just a moment, please. Our boss will arrive in a while.
They walked back together, talking all the while(= all the time) .

New Words：

tuck in 尽情地吃;大口地吃

Sample Sentences：

Come on, tuck in everyone!
Tuck in, it's the last hot food you'll get for a while.
He can tuck in three or four sandwiches between meals.

while [waɪl] n.一会儿；一段时间

New Words：

area [ˈeriə] n. 地区;地域;场地;部位;领域

Sample Sentences：

Do not smoke in all hotel area.
She knows the local area very well.
Do you know "zip code " and "area code" ?
We're looking around for a house in this area.