broom
n. 掃帚

cleanliness
n. 清潔

complexity
n. 復(fù)雜（性）

consume
v. 消費(fèi)，消耗

costly
a. 昂貴的；價(jià)值高的

device
n. 器械，裝置

downfall
n. 衰敗（的原因）

dust
n. 灰塵，垃圾，灰燼

error
n. 錯(cuò)誤，謬誤；差錯(cuò)

error-prone
a. 容易犯錯(cuò)誤的

force
v. 強(qiáng)迫，迫使

gadget
n. 小工具，小機(jī)械

gobbler
n. 狼吞虎咽的人，并吞者

grandparent
n. 祖父或祖母

hood
n. 汽車發(fā)動(dòng)機(jī)罩

hourly
a. 每小時(shí)的，以小時(shí)計(jì)的

impersonal
a. 客觀的，和個(gè)人無關(guān)的

labor-saving
a. 節(jié)省勞力的；減輕勞動(dòng)強(qiáng)度的

laundry
n. 洗衣；洗衣店

lawn
n. 草地，草坪

leisure
n. 空閑時(shí)間；悠閑

lighten
v. 減輕；照亮

likewise
ad. 同樣地；也，又

madden
v. 使發(fā)狂，激怒

maker
n. 制造者

object
n. 物，物體；目的

option
n. 選擇，取舍

overload
v. （使）超載

possession
n. 所有物；財(cái)產(chǎn)

pressure
n. 壓力

prone
a. 易于…的

rag
n. 抹布；破布

recorder
n. 錄音機(jī)

replace
v. 替換，更換

scale
n. 規(guī)模

screwdriver
n. 螺絲起子

stuff
n. 材料
v. 裝，填，塞

tape
n. 帶，磁帶，錄像帶

tax
v. 耗費(fèi)，使負(fù)重?fù)?dān)
n. 稅

tire
n. 輪胎
v. 疲勞，累；厭倦

vacuum
n. 真空

video
a. 錄像的
n. 錄像機(jī)

wrench
v. 擰，扭傷
n. 擰

show up
出現(xiàn)

break down
出毛病，損壞；垮掉，（健康）變得衰弱

go wrong
出毛病

in (the) place of
代替

Merry Learning

Does the Dog Know the Proverb?

One day a Frenchman went to visit his English friend. When he came up to his house, a big dog ran out and began to bark at him.
The Frenchman was frightened and stopped. At that moment the Englishman came out and saw his friend. "Don't be afraid!" he said. "Don't you know the proverb 'Barking dogs don't bite?'" "Oh, yes," was the quick answer. "I know the proverb, and you know the proverb, the dog... Does the dog know the proverb?"