You can rely on him to respond to a challenge.
你可以信赖他，他懂得应付挑战。
I called out a challenge, but there was no reply.
我发起了一个挑战，但是没人回应。
Taking her with me on official occasions has been a challenge.
在正式场合带上她对我而言是一种挑战。
It was a challenge, keeping ten boisterous seven-year-olds amused.
要逗着十个好动的七岁孩子玩真是一种挑战。
I sometimes get worried in this job. Having said that, I enjoy doing it, it's a challenge.
我有时会为这份工作而感到忧虑。话虽如此，我还是蛮喜欢干的，因为这是一个挑战。
妈妈向我提出了一个挑战。
This is a challenge in itself.
这本身就是一个挑战。
It is a challenge for most students.
这对大多数学生来说都是一个挑战。
The boy took that as a challenge. "I will show people that I can," he said to himself.
那个男孩将它当成了一个挑战。他对自己说：“我会向人们证明我是可以的。”
"Yulelogs really loved his birthday cake," a worker said, "It's also a challenge for him as it requires a bit of thinking on how to get the fish out of the cake!"
“Yulelogs 真的很喜欢他的生日蛋糕。”一名工作人员说，“这对他来说也是一个挑战，因为他需要思考一下如何把鱼从蛋糕中取出来！”
Severn's questions were a challenge to the world's leaders—questions about why the grown-ups who run the world don't take more care of it and of the people who live in it.
珊文提出的问题是对世界领导人们的一个挑战——为什么掌管世界的成年人不更加关心世界和生活在世界上的人们。
John found it a challenge to satisfy the boss.
约翰觉得让老板满意是一个挑战。
McDonald's started selling better coffee as a challenge to Starbucks.
麦当劳开始销售更好的咖啡来挑战星巴克。
Sometimes choosing where to eat in Suzhou is something of a challenge.
在苏州，有时选择去哪里吃饭是一种挑战。
It's a challenge and the least desirable properties are usually the most fun.
这是一个挑战，最不理想的房产通常是最有趣的。
Feeding today's population is a challenge for an already-stressed environment.
养活今天的人口对已经很紧张的环境来说是一个挑战。
Traveling by subway can sometimes be a challenge, especially during rush hour.
乘地铁有时会是一种挑战，尤其是在高峰时间。
Abstract art offers both a challenge and the freedom to play with different interpretations.
抽象派艺术给不同的诠释方式同时提供了挑战与自由。
Like most students, when studying at middle school, I found math interesting but difficult, which was a challenge for me.
像大多数学生一样，读中学时，我觉得数学虽有趣但很难，这对我来说是一个挑战。
As yet a challenge to explain the cause-and-effect relationship between sleep and nutrition, there may be a third factor that impacts both of them.
要解释睡眠和营养之间的因果关系，还有一个挑战，那就是可能有第三个因素对它们两者都有影响。
It's as yet a challenge to explain the cause-and-effect relationship between sleep and nutrition. There may be a third factor that impacts both of them.
迄今为止，解释睡眠和营养间的因果关系仍是一个挑战。可能存在第三个因素影响这两者。
In a challenge for manufacturers, 81% of paper product users said they would consider buying recycled toilet tissue if it were comparable in quality to standard paper.
制造商面临的一个挑战是，81%的纸制品用户表示，当回收再造的卫生纸质量与标准卫生纸相当时，他们才会考虑购买。
When new or difficult material is presented, almost all listeners are faced with a challenge, because human's speech lacks the stability and permanence of the printed word.
当出现新的或困难的材料时，几乎所有的听众都面临着一个挑战，因为人类的语言缺乏印刷文字的稳定性和持久性。
In dealing with a challenge on such a scale it is no exaggeration to say, "United we stand, divided we fall" and if I had to choose a slogan it would be "Unity in our diversity".
在应对如此规模的挑战时，可以毫不夸张地说，“团结则存，分裂则亡”，而如果我必须选择一个口号，那就是“多元一体”。
Getting back into exercise can be a challenge in the best of times, but with gyms and in-person exercise classes off-limits to many people these days, it can be tricky to know where to start.
在境况最好的时候，重新开始锻炼身体也可能是一项挑战，但如今许多人都无法去健身房或参加面授的健身课程，就更是连从何处入手都很难知道。
She beat off a challenge to her leadership.
她战胜了对她的领导地位的挑战。
As a man of 93, he met a challenge.
在他93岁的时候，他遇到了挑战。
What did Darrius take as a challenge at the age of 10?
达瑞斯在10岁的时候把什么当作挑战？
The pandemic (大疫情) is a challenge not only to China but also to the world.
这次疫情不仅是对中国的挑战，也是对世界的挑战。
When there's a challenge presented to you, you can learn from it and use it as a chance to overcome it.
当你遇到挑战时，你可以从中学习，并且把它当作一个机会来克服它。
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