Types of Wars類型的戰(zhàn)爭
Civil wars are fought between citizens of the same country, and are fought within the country.內(nèi)戰(zhàn)發(fā)生在同一個國家的公民之間苛预，也發(fā)生在這個國家內(nèi)部。
If citizens of a country disagree about the policy or leader, they may fight a civil war.如果一個國家的公民對政策或領(lǐng)導(dǎo)人有不同意見偏化，他們可能會打一場內(nèi)戰(zhàn)。
A world war is fought when countries form alliances, and these alliances fight each other.當(dāng)國家結(jié)成聯(lián)盟传藏，而這些聯(lián)盟又互相爭斗時，世界大戰(zhàn)就爆發(fā)了址貌。
A world war involves many or most of the world's most powerful countries.世界大戰(zhàn)涉及世界上許多或大多數(shù)最強(qiáng)大的國家脚翘。
There were 2 world wars in the 20th century.20世紀(jì)有兩次世界大戰(zhàn)。
Terrorism involves groups of individuals rather than countries.恐怖主義涉及個人團(tuán)體勝過國家炎咖。
Terrorists may come from different countries, and they may share the same beliefs.恐怖分子可能來自不同的國家赃泡，他們可能共享相同的信仰。
Terrorists often use car bombings and suicide attacks on innocent people.恐怖分子經(jīng)常用汽車炸彈和自殺式襲擊無辜的人乘盼。
A terrorist attack can happen at anytime and anyplace.恐怖襲擊隨時隨地都可能發(fā)生升熊。
An invasion occurs when one country attacks another.當(dāng)一個國家攻擊另一個國家時，侵略就發(fā)生了蹦肴。
It sends its army into the other country, and attempts to take control.它派遣軍隊(duì)到另一個國家并試圖控制僚碎。
One of the most famous invasions was when France invaded Russia in 1812.最著名的入侵之一是1812年法國入侵俄羅斯。
A defensive war occurs when a country is attacked and needs to defend itself.當(dāng)一個國家受到攻擊需要自衛(wèi)時阴幌，就會發(fā)生防御性戰(zhàn)爭勺阐。
Most countries have a military, so that it can defend itself if it's attacked.大多數(shù)國家都有軍隊(duì)，所以一旦受到攻擊矛双，軍隊(duì)可以自衛(wèi)渊抽。
When France invaded Russia in 1812 the Russian army fought a defensive war and defeated the French army.1812年法國入侵俄國時，俄國軍隊(duì)打了一場防御戰(zhàn)议忽，打敗了法國軍隊(duì)懒闷。
Throughout history there have been many invasions.歷史上有許多侵略。
Biology Terms生物學(xué)方面
A cell is the basic unit of life.細(xì)胞是生命的基本單位栈幸。
The cellis the smallest structure that can live and reproduce.細(xì)胞是能夠生存和繁殖的最小的結(jié)構(gòu)愤估。
Cells grow and develop, reproduce and interact with the environment.細(xì)胞生長、發(fā)育速址、繁殖并與環(huán)境相互作用玩焰。
Photosynthesis is one of the most important biological processes.光合作用是最重要的生物過程之一。
It allows plants to capture and use light as an energy source.它允許植物捕捉和利用光作為能源芍锚。
Photosynthesis is the process of converting light energy into chemical energy.光合作用是把光能轉(zhuǎn)化為化學(xué)能的過程昔园。
A virus is a small biological structure that attacks and enters cells.病毒是一種攻擊并進(jìn)入細(xì)胞的小型生物結(jié)構(gòu)。
Once inside a cell, a virus reproduces and makes many copies of itself.一旦進(jìn)入細(xì)胞并炮，病毒就會自我復(fù)制并復(fù)制很多次默刚。
Some diseases such as influenza are viruses.有些疾病如流感是病毒。
Bacteria are one-celled forms of life that are all around us.細(xì)菌是生活在我們周圍的單細(xì)胞生物逃魄。
Although they have a single-cell structure, they are very important.雖然它們是單細(xì)胞結(jié)構(gòu)荤西，但它們非常重要。
Many bacteria are inside us and help us digest our food.許多細(xì)菌在我們體內(nèi)幫助我們消化食物。
DNA is a complex molecule that stores information and can make copies of itself.DNA是一種復(fù)雜的分子皂冰，它可以儲存信息并復(fù)制自己店展。
Nearly every cell in a person's body has the same DNA.幾乎每個人體內(nèi)的細(xì)胞都有相同的DNA。
The information stored in DNA tells cells what to do, and is necessary for reproduction.儲存在DNA中的信息告訴細(xì)胞該做什么秃流，這是繁殖所必需的赂蕴。
Many bacteria are inside us and help us digest our food.許多細(xì)菌在我們體內(nèi)幫助我們消化食物。
cells are often called the building blocks of life 細(xì)胞通常被稱為生命的基石
there are billions of bacteria in our intestines我們的腸道里有數(shù)十億的細(xì)菌
some bacteria are very dangerous and can caouse disease有些細(xì)菌非常危險(xiǎn)舶胀，會引起疾病
