Backweld
背焊缝
🗣️ 情景例句
If we're all prepared to recycle paper, thousands of trees could be saved every day.
如果纸能被循环利用，那么每天千千万万的树木就可得以挽救。
When you go to buy, use your eyes not your ears.
你去购买东西时，要用眼睛莫用耳。
The road divides here.
这条路在这里分岔。