Backscatter
[计] 反向散射
✅ 同义词
🗣️ 情景例句
Please hold on a moment.
请等会儿。
He who is ashamed of asking is ashamed of learning.
耻于问者耻于学。
Oh dear! It's very warm in this clasroom, isn't?
天哪，这屋里真暖和，不是吗？