1. chew [tʃuː] 
v. /n. 咀嚼 
chewing gum 口香糖

2. swallow ['swɒləʊ] 
v. 吞咽,忍受 n. 燕子
Some books are to be tasted, others to be swallowed, and some few to be chewed and digested. 
一些书可以浅尝辄止；一些书可以狼吞虎咽；而有些书则需要细嚼慢咽，好好消化。

3. digest [daɪ'dʒest] 
v. 消化，吸收 n. 文摘
Sit still and allow your meal to digest. 坐着别动，让你吃的饭消化一下。

4. absorb [əb'zɔːb] 
v. 吸收，吸引，使专心
Plants absorb water from the soil.植物从土壤中吸收水分。

5. assimilate [ə'sɪmɪleɪt] 
v. 同化，吸收
We assimilated many new experience on our European trip. 我们从欧洲之行中吸收 了许多新的经验。
cultural assimilation 文化同化

6. resemble [rɪ'zemb(ə)l] 
vt. 类似，像 
She resembles her mother. 她很像她妈妈。

7. assemble [ə'semb(ə)l] 
v. 集合，装配 
Over 5,000 people assembled in the main square. 五千多人在主广场集合。

8. symmetry ['sɪmɪtrɪ] 
n. 对称 
asymmetry 不对称

9. homogeneous [hə'mɒdʒɪniəs] 
adj. 同类的，同质的
homogeneous group/society 同类团体/同族社会
homosexual 同性恋的

10. duplicate [ˈdjuːplɪkeɪt] 
v. 复制，使加倍
Parenthood is an experience nothing else can duplicate. 亲子关系是一种无法复制的经历。

11. overlap [əʊvə'læp] 
v.重叠，与…同时发生
My musical tastes don't overlap with my brother's at all. 我的音乐品味跟我哥一点也不一样。