1. slavery n.奴隶制度
n.cf.slave
Many men fought for the abolition of slavery.
许多人为废除奴隶制度而奋斗.

2. spacious adj.宽敞的
The rooms of the palace were spacious.
这座大厦和房间很宽敞.

3. staff n.全体人员
The teaching staff of the school is excellent.
该校的教师很优秀.

4. straw n.稻草
The farmers covered the barn floor with straw.
农民把稻草覆盖在谷仓的地板上.

5. surface n.表面
反.bottom
Leaves were floating on the surface of the pond.
叶子漂浮在池塘的水面上.

6. tick n.滴答声
The silence were broken only by the tick of the clock.
只有钟的滴答声打破了寂静.

7. tremendous adj.巨大的
The army suffered a tremendous defeat in that battle.
在那次战役中,陆军惨败.

8. variety n.多样性
The store over there has a great variety of toys.
那边那家商店里有很多各式各样的玩具.

9. waterfall n.瀑布
The Niagara Falls is one of the most beautiful waterfalls in the world.
尼亚加拉瀑布是世界上最美丽的瀑布之一.

10. worm n.虫
The worm turns the soil.
虫翻土.