1.ease: the ability to do something without difficulty
　　Examples: The wall is so low that they jump over it with ease.

2. His horse... appeared to be in fine shape: His horse ...looked fit and strong.

3. relax: become less tense
　　Examples: The music will help to relax you.

4. obstacle: sth. in the way that stops progress or makes it difficult
　　Examples: A tree fallen across the road was an obstacle to our car.

5. communication: the act or action of communicating
　　Examples: Speech and writing are man’s most important methods of communication.

6. break down: fail; (of machinery) fail to work
　　Examples: The peace talks have broken down.

7. result in: have as a result; cause
　　Examples: The accident resulted in the deaths of 2 passengers.

8. on one’s own: without help
　　Examples: I can’t carry it on my own; it is too heavy.

9. at the time: at the moment when something happened
　　Examples: He called at my office yesterday morning, but I could not see him, as I was having

10. despair: (v.) lose hope of
　　Examples: Don’t despair: things will get better soon.

11. undergo: experience (esp. suffering or difficulty)
　　Examples: The explorers had to undergo much suffering.

12. restore: bring back to a good or desirable state, especially of health
　　Examples: He feels completely restored to health after a period of intensive care.

13. emphasize: place special attention on
　　Examples: He emphasized the importance of being honest.

14. aid: support; help
　　Examples: The family lived on government aid for two years.

15. set out: begin a course of action
　　Examples: He set out to break the world record.

16. sustain: (enable to) keep up, maintain
　　Examples: They had nothing to sustain them all day except two cups of coffee.

17. at a time: one (two etc.) on each occasion; separately
　　Examples: He took the stairs two at a time.

18. turn to: shift to
　　Examples: After he left the university, he became a teacher, but later he turned to journalism.