O3
[医] 臭氧
🗣️ 情景例句
Mr. Lu, we are very pleased to be able to offer this product to you.
陆先生，我们很高兴能提供这个产品给您。
Please remember this is not to be taken as final.
请记得这不是最后的回答。
Congratulations!
祝贺你！