defensive
a. 有戒备的，防卫的

differ
V. 不同，相异

dimension
n. 方面

distinguish
V. 区分，辨别

encyclopaedia
n. 百科全书

extreme
n. 极端

fundamental
a. 基本的，根本的

identify
V. 确定，辨认

long-term
a. 长期的

loyal
a. 忠实的，忠诚的

opportunity
n. 机会，机遇

orient
V. 引导，使…定向

oriented
a. 以…为向导的，以…为目标的

presentation
n. 介绍，展示

sound
a. 合理的，正确的

tie
V. 联系，连接

come up with
提出，提供

consult with sb.
与某人商量，向某人请教

pile on
堆积

Merry Learning

Commuters
Tired eyes,
Aching feet,
The commuters scramble
For a seat.
Each night
They go to bed
With heavy heart
And sleepy head,
Knowing tomorrow
They must repeat,
In weary sorrow,
With hurrying feet,
The tedium of today.