4708.jewel(名)珠寶
The family jewels are locked away in a safe.
家里的珠寶首飾都鎖在保險柜里。

4709.joyful(形)愉快的、高興的
同義詞blissful
It was a joyful neunion of all the family.
合家團聚，其樂融融。

4710.joyfully(形)愉快地
He joyfully consented and we set out.
他欣然同意，我們就出發了。

4711.joyous(形)快樂的
How joyous was that raunion.
久別重逢是多么令人欣喜啊！

4712.joyously(副)快樂地
She opened the door for me and threw herself in my arms, screaming joyously and
demanding that we decorate the tree immediately.
她打開門，直撲我的懷抱，欣喜地喊叫著要馬上裝飾圣誕樹。

4713.jungle(名)叢林；雜亂的一堆；生存競爭激烈殘酷之處
The paper is a jungle of ads.
報上盡是雜七雜八的廣告。

4714.junk(名)垃圾、廢物
同義詞trush
There is nothing but junk in the annual report.
年報里除了一些廢話什么都沒有。

4715.kangaroo(名)袋鼠
Australla is the province of the Kangaroo．
澳大利亞是袋鼠生長活動的地區。

4716.ketchup(名)番茄醬
She spotted her dress with ketchup.
她被番茄醬弄臟了衣服。

4717.kettle(名)茶壺、水壺
I'll put the kettle on and make some tea.
我要燒壺水徹茶。

4718.kin(名)家族；同類(形)有親屬關系的；同類的
(名):What kin is he to you?
他和你是什么關系？
(形):Your cousin is also kin to me.
你的堂兄也是我的親戚。

4719.kindergarten(名)幼稚園
Take your children to the kindergarten．
送孩子去幼兒園。

4720.kneel(動)跪下
不規則變化knelt, knelt
We knelt on the ground to examine the tracks.
我們跪在地上檢查軌道。

4721.knight(名)騎士；爵士
The knight dismounted his opponent.
這個武士把他的對手打下馬來。

4722.knock(動)敲、打
后接介詞on
Somebody was knocking on the window.
有人在敲窗戶。

4723.knot(名)繩結(動)打結
(名):She had her hair in a loose knot．
她把頭發打了個松松的鬢。
(動): She wore a scarf knotted around her neck.
她在脖子上系了一條圍巾。

4724.lab(名)實驗室
laboratory的簡稱
The lab needs some new equipments.
實驗室需要一些新設備。

4725.labor(名)勞動、勞工
Labor creates the world．
勞動創造世界。

4726.laboratory(名)實驗室
Where's the language laboratory?
語言實驗室在哪里？

4727.lad(名)年輕人、少年
Things have changed since I was a lad.
從我兒時至母，一切都發生了變化。

4728.ladybug(名)瓢蟲
There is a red ladybug with a black spot on each wing.
有一只翅膀上有一個黑色斑點的紅色瓢蟲。

4729.lamp(名)燈
She could see the rain in the light of the street lamps．
在路燈燈光的映襯下，她能看見下雨。

4730.landmine(名)地雷
The landmmine is eternally prepered to take victims.
地雷永遠在那里等侯犧牲者。

4731.landside(名)山崩
The house was buried beneath a landslide.
那揀房子被山崩掩埋了。

4732.laser(名)鐳射
The bar codes on the products are read by lasers．
產品上的條碼是用鐳射讀取的。

4733.latest(形)最近的、最新的
同義詞new
Have you heard the latest news?
你得到最新消息了嗎？

4734.latitude(名)緯度；自由
They allow their children far too much latitude．
他們對自己的孩子太放任自由了。

4735.latter(形)后者的、后面的
The latter point is the most important．
后面提及的那一點是最重要的。

4736.laughter(名)笑聲
Watching me pulling the calf awkwardly to the barn, the Irish milkmaid fought hard to hold back her laughter.
看到我費勁地把小牛犢拉回牲口棚，那個愛爾蘭擠奶女工極力忍住不笑出聲來。

4737.lawful(形)合法的、法律上的
同義詞legal
Can an act that causes death ever be lawful?
導致死亡的行為能合法嗎？

4738.lawmaker(名)立法者
King of the West Saxons, scholar, and lawmaker repelled the Danes and helped consolidate England into a unified kingdom.
韋塞克斯王國國王、學者及立法者，曾擊敗了丹麥人的侵略并使英格蘭成為統一的王國。

4739.lawn(名)草地
We have to mow the lawn twice a week.
我們每周得修剪草坪兩次。

4740.lawsuit(名)訴訟
He filed a lawsuit against his record company.
他對給他錄制唱片的公司提起了訴訟。