重點講解:
venture
vt. 敢于
vi. 冒險;投機
n. 企業;風險;冒險
He ventured that plants draw part of their nourishment from the air.
他試探著提出了植物從空氣中吸取它們的部分養分的觀點
demonstrate
vt. 證明;展示;論證
vi. 示威
They are anxious to demonstrate to the voters that they have practical policies.
他們急于向選民證明他們有切實可行的政策。
expression
n. 表現,表示,表達;表情
Language is a means for the expression of thought.
語言是一種表達思想的方式。