??rely on one's surport
Rely on ourselves than on others.

683

all the time

一向、一贯

He watched over me all the time.

684

knock down

击倒、撞倒、撤消

know down the opponent
（击倒敌手）

685

at war

在交兵中

be at war for 8 years

686

so as to

以便于、为了

Start earlier so as to get there in time.

687

class

n.班级、阶层

class difference
We are in the same class.

688

nest

n.窝、巢
vi.筑巢

A bird lays eggs in the nest.
Every bird likes his own nest best.

689

engine

n.引擎、发主意、机车、火车头

the engine starts up with a roal（吼叫、轰鸣声）

690

engineer

n.工程师、火车司机
vt.操作、方案、制造

an experienced engineer

691

as a whole

总的来讲、就全体而言

As a whole,this article is well written.（写得不错、精心编写）

692

help sb. with sth.

在某方面协助别人、协助或人做某事

Mother helped me with my homework.

693

leave...behind

不带、忘了带、把...撇在后边、留下

He left nothing behind.
I left my key behind in my car.

694

merry

adj.欢爽快活的、酣畅的

burst into merry laughter
Merry Christmas!

695

settle down

假寓、过安靖的糊口、恬静下来、静下心来

settle down abroad
settle down in a city

696

pest

n.害虫、有害的动物、厌烦的人或物

crop pests
She is a pest at school.
a pest control specialist（害虫防治专家）

697

best

adj.最佳的
adv.最佳、最

lose my best friend
East or west ,home is best.
I work best in the morning.

698

office

n.单位、当地局、官职、任职

work in the office

699

officer

n.官员、警官、法警

I'm an officer.

700

official

adj.官方的
n.官员、行政职工

official figures
visit the official website

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