1. secession /sɪˈseʃən/

-- (literally, "a going apart") withdrawal from an organization or federation

South Carolina's secession was imitated by ten other states and led to the formation of the Confederacy.

南卡罗来纳州退出联邦为其他10个州所仿效，导致南部邦联的形成。

 

 

2. sediton /sɪˈdɪʃn/

-- going apart from or against an established government; action, speech or writing to overthrow the government

The signers of the Declaration of Independence, if captured by the enemy, would probably have been tried for sedition.

《独立宣言》的签署者如果被敌人抓到了，可能会因叛乱的罪名而被审判。

 

 

3. secede /sɪˈsi:d/

-- (literally, "go apart") withdraw from an organization or federation

When Abraham Lincoln was elected President in 1860, South Carolina seceded from the Union.

当亚伯拉罕·林肯在1860年当选为总统时，南卡罗来纳州便退出了联邦。

 

 

4. seclude /sɪˈklu:d/

-- keep apart from others; place in solitude; isolate

Ann was so upset by her failure in math that she secluded herself and refused to see anyone.

安因为数学考试不及格而心烦，所以她把自己隔绝起来，拒绝见任何人。

 

 

5. segregate /ˈseɡriɡeit/

-- (literally, "set apart from the herd") separate from the main body 

In most high schools, boys and girls attend the same classes, except in health education, where they are segregated.

大部分中学生都是男女生一块上课，只有上体育课的时候才把他们分开。

 

 

6. secure /siˈkjuə/

-- 1. apart or free from care, fear or worry; confident 

2. safe against loss, attack or danger

Are you worried about passing the midterm exam or do you feel secure?

你在担心怎么通过期中考试还是你根本就很放心？

Land in a growing city is a secure investment.

在一个不断发展的都市里，地产是一种安全的投资。