17.bury v.埋藏
例句:The pirates buried their treasure.
海盗埋藏了他们的财宝。

18.power station 发电站,发电厂
例句:There is a power station.
这儿有个发电站。

19.politely adv.有礼貌地;客气地
例句:He thanked me politely.
他很客气地向我表示感谢

20.grin n.露齿而笑
例句:She grinned foolishly at him.
她咧着嘴对他傻笑。

21.contain v.包含;含有;容纳
例句:The jar contains ten glasses of water.
这只大口瓶能装十杯水。

22.clear adj.明白清楚的
例句:We could see fish in the clear water.
我们看到清澈的水中有鱼。

23.iron n.熨斗
例句:If the iron is too hot, it can damage the material of the garment.
如果熨斗太热,会损坏衣料。

24.switch v.开或关(电器)

25.off adv.不连接;不工作

26.switch off 关(电灯、机器等)
例句:He switched the light off.
他关上电灯。

27.lock v.(用锁)锁上
例句:See that the door is locked before you go to bed.
睡觉前切记把门锁上。

28.test v.试验
例句:The doctor tested his ears.
医生检查他的耳朵。

29.encourage v.鼓励
例句:She encouraged him to talk to her.
她鼓励他与她交谈。

30.behave v.表现
The young lady behaved courageously in the face of danger.
那位年轻女士面对危险表现得十分勇敢。

31.polite adj.有礼貌的
例句:He's always so polite to people.
他对人总是非常有礼貌。

32.staff n.全体职工
例句:He's got some experts on the staff.
他的职员中有一些专家。

33.customer n.顾客
例句:The store has a lot of regular customers.
这家商店有许多老主顾。