1.curve vt.vi.(使)弯成弧形
例句：The missile curved gracefully towards its target.
导弹呈优美的曲线状飞向目标。
2.harness n.（防止坠落或摔倒的）背带，保护带
3.stretch n.延伸
例句：The road stretches uphill at a steep slope.
这条路以陡峭的坡度向山上延伸。
The bird stretched its wings.
鸟展开了翅膀。
4.overestimate vt.对(数量)估计过高;对…作过高的评价
例句：We overestimated the bill.
我们对账单涉及的钱数估计多了。
I think you’re overestimating his abilities.
我看你对他的能力评价过高。
5.underestimate vt.对…估计不足, 低估
例句：I underestimate the distance, and am exhausted.
没想到这么远, 我可累坏了。
Do not underestimate the significance of nuclear power.
不要低估核能的重要性。
6.continual adj.不间断的, 不停的
例句：I am tired of this continual rain.
不停的下雨使我厌倦。
Church Street is continual with High Street.
教堂街与高街相连。
1.Most rocks have cracks and holes and parts that stick out.
stick out伸出来, 突出; 竖起
例句：Your hair is sticking out in the back.
你脑袋后面的头发竖起来了。
An arm was sticking out from the hole.
有只胳臂从洞中伸出。
2.In a group climb, the first climber is the lead climber. He has a rope attached to his harness.
attach to(使)贴〔系, 粘〕在…上
例句：Is there a dining car attached to the train?
本次列车有没有附设一节餐车?
He attached labels to his luggage.
他把标签贴在行李上。
3.It's sort of like a world on its own. There's no other sport where you're really going up and down.
sort of稍微，有几分；到某种程度，在一定程度上