英語語法----介詞Preposition（Prep.）
城市、北、河上游、近處 鄉村、南、河下游、遠處 e.g.
we first visited nanjing, and then went up the guangzhou-beijing
railway line.
just then, they saw a car racing at top speed up the road.
（汽車迎著他們飛馳而來。）
41.with 1）用（工具、器械等） e.g.
most people write with their right hand.
in this way, they killed two birds with one stone.
he wrote the letter with a pen /pens. (具體工具)
in pen. （原材料）
2）和，與，同 e.g.
as it was beginning to rain, he went out ~ an umbrella.
yesterday he went to the cinema ~ his father.
3）穿，戴，有 e.g.
he went to the seaside with sun glasses and a white cap on his hand.
china is a large country ~ a long history.
i saw an old man with grey hair.
i bought a book ~ a lot of pictures in it.
4）由于 e.g.
hearing the good news, we jumped with joy.
with a family of eight to support, the man could not enjoy himself
with icecream.
5）隨著 e.g.
with the passing of the years, his hair became white.
with the development of modern agriculture and industry, more and more