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Dialogue Six   Exploring the source of the Mississippi  
 
 explore
v.

探险,探测;
e.g.: explore a trackless wilderness 勘探无人迹的荒野
explore the Amazon jungle 对亚马逊河森林进行勘探
exploration n.勘探,探险
explorer n.考察者,探险者

 source
n. 1. 来源 ,出处
e.g.: We’ll have to find a new source of income.
我们不得不寻找新的收入来源
2. 溪流的发源地,水源
We followed the river back to discover its source.
我们溯流而上,寻找河流的源头
 Mississippi
  密西西比河 (in America)
 get into trouble
  招致不幸,陷入困境
ask (look) for trouble 自找麻烦,自找苦吃
in trouble 处于不幸(或苦恼,困境)中
make trouble 闹事,捣乱
Never trouble trouble till trouble troubles you. (谚)麻烦没有找你,别去自找麻烦.
 block
v. 1. to prevent movement through 阻挡,堵塞,封锁
e.g.: The road was blocked by a big truck 道路被一辆大货车堵死了
2. to shut off from view 挡住(视线)
The trees outside the window block (off) the sun 窗外的树木挡住了阳光
 beat
v. 1. (接连地)打,敲;冲击
e.g.: Waves beat the shore 波浪冲击岸边
2.打败,战胜;超越
beat back the enemy 击退敌人
beat the world record in the high jump 打破世界跳高纪录
3. 踏出,走出(道路);挤进,挤出
beat a new path 开辟新道路(或途径)
beat one’s way through the crowd 挤过人群