Paying back
na. 偿还；报答；向…报复；付还
🧩 词语组成解析
a. 支付的, 付款的, 有利的, 赢利的, 合算的\\n[经] 支付
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
🗣️ 情景例句
When was it built?
它是什么时候建造的？
Many receive advice only the wise profit by it.
聆忠言者众，智者独获益。
It is a good idea to start a part-time job so long as it does not affect your studies.
只要不影响学习，干兼职工作的想法是不错的。