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
At home I like reading books and listening to music.
我喜欢在家里看书或听音乐。
Politeness is to do and say the kindest thing in the kindest way.
文雅就是善良地做事，和善地说话。
These are partly a matter of personal circumstances, partly a matter of psychology.
这里一方面是个人所处的环境，另一方面是个心理学的问题。