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- Dangerous and difficult roads made it hard to travel in the region. The transport of goods and the delivery of mail had to depend on human and animal power. 旧西藏交通险阻，行路艰辛，贷物运输、邮件传递全靠人背畜驮。
- When a markets gotten away and you have missed the first leg you should still consider jumping in even if it is dangerous and difficult. 如果市场已经起步了而你错过了第一轮烽火，你不妨仍然考虑中途介入，即使这样做是危险而困难的。
- When a market's gotten away and you've missed the first leg you should still consider jumping in even if it is dangerous and difficult. 如果市场已经起步了而你错过了第一轮烽火,你不妨仍然考虑中途介入,即使这样做是危险而困难的。
- The cave's entrance is the second deepest in the world, making the lengthy ascent out dangerous and difficult for even the most seasoned cavers. 这个洞穴的入口是第二个最深的在全世界，使漫长的上升了出现危险和困难甚至是最老练的探察洞穴的人。
- He was using his daughter, who was likely very beautiful and desirable, as bait, soliciting people to accomplish the conquering that was dangerous and difficult. 他的女儿可能看起来漂亮又悦人的眼目，他只是用她做诱饵来请人完成这个危险又有困难的战争。
- Eels are long and difficult to catch. 鳝鱼很长而且很难抓住。
- The tiger suspected danger and ran away. 老虎意识到危险便逃跑了。
- The horse sensed danger and stopped. 马感觉到了危险，于是停了下来。
- The roof is dangerous and could cave in at any time. 屋顶很危险，任何时候都会坍塌。
- Life is getting more complex and difficult. 生活正在变得越来越复杂和艰难。
- The book is out of print and difficult to procure. 那书已绝版，很难弄到手。
- a dangerous and difficult mountain path 崎岖险阻的山路
- The situation in that area was tense, dangerous and volatile. 该地区的局势紧张、危险,且有一触即发之势。
- This animal is dangerous and should be caged in. 这头野兽凶得很，应该关到笼子里去。
- The path to the road is narrow and difficult, but we can squeak through. 这条小路通向大路，但是又窄又难走，不过我们能够穿过去。
- Teaching him Greek was a painful (ie slow and difficult) process. 教他希腊文是很吃力的事。
- People thought him dangerous and wicked. 人们认为他是危险和邪恶的。
- Writing a dictionary is a long and difficult business but we're getting there. 编写词典是费时费事的工作，但我们一定能成功。
- The cliff edge is dangerous and should be railed . 崖边危险，应该用栏杆围起来。
- A soldier has to confront danger and death. 军人必须勇敢而冷静地面对危险和死亡。
