Challenges
n. 挑战( challenge的名词复数 ); 要求; （警卫等）查问口令; 怀疑
🗣️ 情景例句
What's inside?
这里面是什么？
I did it without much difficulty.
我没费多少劲就完成了那项工作。
They employed a few farmhands, but no one was willing to work there long.
他们雇了几个农工，但谁也不愿意在那儿长期工作下去。