Part 2 字根 表示{行为动作}的字根 tain, ten, tin = hold 持有，保持
入门字
contain (v.) 包含
con/ tain
together/ hold
进阶字
1. abstain (v.) 戒绝，不碰
abs/ tain
away/ hold
He once had a drinking problem and now abstains from alcohol altogether.
他以前酗酒，现在滴酒不沾。
2. attain (v.) 达成
at(ad)/ tain
to/ hold
Papua New Guinea attained independence in 1975.
巴布亚纽几内亚在一九七五年完成独立。
3. detain (v.) 扣留，耽搁
de/ tain
away/ hold
The trouble-making students were detained after school for two hours.
这几个问题学生放学后被留校两个小时。
4. entertain (v.) 娱乐，款待
enter(inter)/ tain
between/ hold
The hostess played a nocturne on the piano to entertain her guests.
这位女主人弹了一首钢琴小夜曲来娱乐宾客。
5. obtain (v.) 取得
ob/ tain
to/ hold
There is some indication that torture was used to obtain information from the suspect.
有迹象显示，为了取得情报，嫌犯曾遭到刑求。
6. retain (v.) 留下，保留
re/ tain
back/ hold
The new mayor retained most of the staff of his predecessor.
新市长留下了前任市长大部分的幕僚。
7. sustain (v.) 蒙受，维持
sus(sub)/ tain
under/ hold
The listed company sustained heavy losses in the latest stock-market crash.
这家上市公司在最近的一次股市崩盘中蒙受巨大损失。
8. tenaciously (adv.) 顽强地
ten/ ac/ ious/ ly
hold/ 副词字尾
The wife of the missing man clung tenaciously to her hopes, refusing to admit that he was probably dead.
这名失踪男子的太太顽强地抱着希望，拒绝承认他很可能已经死了。
9. tenant (n.) 房客
ten/ ant
hold/ 名词字尾
He is an ideal tenant, one who pays his rent in advance and doesn't bother anybody.
他是个完美的房客，房租预付，也不打扰别人。
10. tenet (n.) 教义，教条
ten/ et
hold/ 名词字尾
The tenets of his religion forbid him to touch meat.
他所信仰的宗教中，教义明定禁止吃肉。
11. tenure (n.) 任期
ten/ ure
hold/ 名词字尾
Justices on the Supreme Court enjoy life tenure.
最高法院的大法官享有终身任期。
12. content (n.) 目录，内容
con/ tent
together/ hold
You can get a rough idea about a book by looking at the table of contents.
你可以从目录来概略地了解一本书。
13. maintenance (n.) 保养，维护
main(manu)/ ten/ ance
hand/ hold/ 名词字尾
You should take your car to the garage for maintenance regularly.
你的车子应该定期开到修车厂去保养。
14. untenable (a.) 行不通的
un/ ten/ able
not/ hold/ able
Any form of utopia is an untenable illusion.
任何一种形式的乌托邦都是行不通的幻想。
15. continent (n.) 大陆，洲
con/ tin/ ent
together/ hold/ 名词字尾
Antarctica, once believed to be an ocean, was found to be a continent.
南极洲以前被认为是海洋，后来发现它是不折不扣的大陆。
16. retina (n.) 视网膜
re/ tin/ a
back/ hold/ 名词字尾
The retina is so called because it “retains” visual images.
视网膜的英文名称（retina）来自于它能保留（retain）视觉影像。
17. retinue (n.) 随从
re/ tin/ ue
back/ hold/ 名词字尾
The visiting king and his retinue took up a whole floor at the Regent.
来访的国王和随行人员住满了丽晶酒店的一整楼。