Always like this.
總是如此。
Keep it.
留著吧。
Hey, I'm going grocery shopping. You want some milk? One quart or two? It's two, right?
嘿,我要去雜貨店買點東西。要我幫你買點牛奶嗎?一夸脫還是兩夸脫?兩夸脫,對吧?