名词 n.
1.材料,原料[C][U] material（s)
eg.Wood and stone are the only raw materials on the island.
木材和石头是这个岛上仅有的原材料。

写一篇介绍性以一种新型交通工具英语作文及翻译

Worldwide the bicycle is probably the most common commuter vehicle, and the second most common form of commuting after walking. While the absolute number of bicycles in existence globally may not be known, it is clear that significantly more bicycles are produced than automobiles.

Transport is the number two cost after housing for most households in rich countries. Automobiles are particularly expensive, as seen in Economics of automobile ownership and people who use cheaper transport can use the money elsewhere. Bike can save on gas, oil changes, brake repairs, tires, car washes, parking fees, and a gym membership.

Some people are enjoying a bike ride. But this isn't just a leisurely ride. It is actually between home and work place .
One of the biggest reasons is the amount of savings on transportation. Looking at the bank account at the end of few months, you start to realize you haven't been buying gas and oil for car and repairs for car and other payment.