the Grand Canyon
the Grand Canyon Waterfalls
canyon
[knjn]
n. (陡峭狭长的)峡谷，溪谷
A canyon is//www.58yuanyou.com a long, narrow valley with very steep sides.
EXAMPLES
1. We hiked the Grand Canyon, exploring Indian cliff dwellings.
我们去大峡谷徒步旅行，探究印第安人的崖居。
2. The G//www.58yuanyou.comrand Canyon in the USA is 1900 metres deep.
美国的大峡谷1900米深。
burn out
[b:n aut]
耗尽原由网体力；筋疲力尽
If you burn yourself out, you make yourself exhausted or ill by working too hard.
EXAMPLES
1. If he doesn't stop working so hard, he'll burn himself out.
他要是继续这样拼命工作，就会把自己累垮。
2. By the age of 25 she was completely burned out and retired from th原由网e sport.
她到25岁时就已体力耗尽，退出了体坛。
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