Backflooding
地下水逆流
🗣️ 情景例句
Something simple--but a good one.
要简单的，但要精美 。
What do you want to be after you're on your own?
当你有自主能力的时候，你想做什么？
One evening, however, the lamb was missing.
可是，一天晚上，那只小羔羊失踪了。