For reference
[经] 备案, 参考
🧩 词语组成解析
for
[fɚ]
prep. 为，为了;倾向于;关于;当作;
conj. 因为，由于;
🗣️ 情景例句
Where is your family from?
祖籍在哪里？
She was flattered by their praise.
他们的称赞使她受宠若惊。
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。