Backwashing
(backwash 的现在分词) n. (划桨引起的)反流, 激流区, 反响\\n[机] 逆吹
🗣️ 情景例句
Macro adjustment is needed in a market economy.
市场经济需要宠观调控。
Give up!
放弃吧！
and we know something of the great variety of the sea bed's topography.
而且我们对海底地形的千变万化也有了一定的了解。