🧩 词语组成解析
🗣️ 情景例句
Excuse me, officer.
对不起 警官。
Which one do you prefer?
你比较喜欢哪一个？
Though a number of descents have been made, much of it still remains to be explored.
人们多次进入洞内探险，但至今尚有不少东西有待勘探。