4708.jewel(名)珠宝
The family jewels are locked away in a safe.
家里的珠宝首饰都锁在保险柜里。

4709.joyful(形)愉快的、高兴的
同义词blissful
It was a joyful neunion of all the family.
合家团聚，其乐融融。

4710.joyfully(形)愉快地
He joyfully consented and we set out.
他欣然同意，我们就出发了。

4711.joyous(形)快乐的
How joyous was that raunion.
久别重逢是多么令人欣喜啊！

4712.joyously(副)快乐地
She opened the door for me and threw herself in my arms, screaming joyously and
demanding that we decorate the tree immediately.
她打开门，直扑我的怀抱，欣喜地喊叫着要马上装饰圣诞树。

4713.jungle(名)丛林；杂乱的一堆；生存竞争激烈残酷之处
The paper is a jungle of ads.
报上尽是杂七杂八的广告。

4714.junk(名)垃圾、废物
同义词trush
There is nothing but junk in the annual report.
年报里除了一些废话什么都没有。

4715.kangaroo(名)袋鼠
Australla is the province of the Kangaroo．
澳大利亚是袋鼠生长活动的地区。

4716.ketchup(名)番茄酱
She spotted her dress with ketchup.
她被番茄酱弄脏了衣服。

4717.kettle(名)茶壶、水壶
I'll put the kettle on and make some tea.
我要烧壶水彻茶。

4718.kin(名)家族；同类(形)有亲属关系的；同类的
(名):What kin is he to you?
他和你是什么关系？
(形):Your cousin is also kin to me.
你的堂兄也是我的亲戚。

4719.kindergarten(名)幼稚园
Take your children to the kindergarten．
送孩子去幼儿园。

4720.kneel(动)跪下
不规则变化knelt, knelt
We knelt on the ground to examine the tracks.
我们跪在地上检查轨道。

4721.knight(名)骑士；爵士
The knight dismounted his opponent.
这个武士把他的对手打下马来。

4722.knock(动)敲、打
后接介词on
Somebody was knocking on the window.
有人在敲窗户。

4723.knot(名)绳结(动)打结
(名):She had her hair in a loose knot．
她把头发打了个松松的鬓。
(动): She wore a scarf knotted around her neck.
她在脖子上系了一条围巾。

4724.lab(名)实验室
laboratory的简称
The lab needs some new equipments.
实验室需要一些新设备。

4725.labor(名)劳动、劳工
Labor creates the world．
劳动创造世界。

4726.laboratory(名)实验室
Where's the language laboratory?
语言实验室在哪里？

4727.lad(名)年轻人、少年
Things have changed since I was a lad.
从我儿时至母，一切都发生了变化。

4728.ladybug(名)瓢虫
There is a red ladybug with a black spot on each wing.
有一只翅膀上有一个黑色斑点的红色瓢虫。

4729.lamp(名)灯
She could see the rain in the light of the street lamps．
在路灯灯光的映衬下，她能看见下雨。

4730.landmine(名)地雷
The landmmine is eternally prepered to take victims.
地雷永远在那里等侯牺牲者。

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

4732.laser(名)镭射
The bar codes on the products are read by lasers．
产品上的条码是用镭射读取的。

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

4734.latitude(名)纬度；自由
They allow their children far too much latitude．
他们对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．
后面提及的那一点是最重要的。

4736.laughter(名)笑声
Watching me pulling the calf awkwardly to the barn, the Irish milkmaid fought hard to hold back her laughter.
看到我费劲地把小牛犊拉回牲口棚，那个爱尔兰挤奶女工极力忍住不笑出声来。

4737.lawful(形)合法的、法律上的
同义词legal
Can an act that causes death ever be lawful?
导致死亡的行为能合法吗？

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.
韦塞克斯王国国王、学者及立法者，曾击败了丹麦人的侵略并使英格兰成为统一的王国。

4739.lawn(名)草地
We have to mow the lawn twice a week.
我们每周得修剪草坪两次。

4740.lawsuit(名)诉讼
He filed a lawsuit against his record company.
他对给他录制唱片的公司提起了诉讼。