Small amounts of oxygen act as a softening agent upon the tannins of the wine.

少量的氧气可以充当酒当中单宁的软化剂。

youdao

Very likely, I returned; or perhaps clerk or agent to a wine-merchant.

“很可能，”我回答，“或者酒商的职员或代理人。”

youdao

Very likely, I returned; or perhaps clerk or agent to a wine-merchant.

“很可能，”我回答，“或者酒商的职员或代理人。”

youdao