Pollutions
(pollution 的复数) n. 污染, 玷污\\n[化] 污染
🗣️ 情景例句
Would you like some coffee?
要不要来点咖啡？
Would you please tell us the price of these electric heaters so as to help us make the decision.
能否告知这些电热器的价格，以便我们作出决定。
as the wave leaves the particles behind back to its starting point again.
当波浪把微粒留在身后时又回到出发点。