New Words：

lawn [lɔːn] n. 草坪;草地

Sample Sentences：

The children are not allowed to play on this lawn.
In summer we have to mow the lawn twice a week.
They were sitting on the lawn under a large apple tree.

mow [məʊ] v. 修剪;割
allow [əˈlaʊ] v. 允许；准许

New Words：

peaceful [ˈpiːsfl] adj.和平的；宁静的；平静的
peacefully [ˈpiːsfəli] adv.和平地；平静地；安静地

Sample Sentences：

China is a peaceful nation.
He had/lived a peaceful life.
It's more peaceful here than London.

The baby slept peacefully.
The march will go very peacefully.

New Words：

peace [piːs] n.和平；平静；宁静

Sample Sentences：

We do not want war, we love peace!
World peace is the greatest prize of all.

The patient needs peace and quiet.
There was too much noise in the room and he needed peace.

New Words：

coast [kəʊst] n.海岸;海滨

shore 沿着海洋、湖泊或另一大片水域边缘的陆地，是一个比较笼统的说法。
coast 在海洋临近的陆地，特指海岸线（地理学）。
beach 海边或湖边的一片沙地或小石头(称为砾石);

Sample Sentences：

We walked along the coast for five miles.
I took a trip to the coast last weekend to relax.
What ocean is on the west coast of the United States?

New Words：

capital [ˈkæpɪtl] n.首都

Sample Sentences：

Cairo is the capital of Egypt.
What's the capital of Finland?
There was heavy fighting in the capital last night.