Peroxychromates
[機] 過氧鉻酸鹽
??? 情景例句
I have two days off a week.
我一星期休息兩天。
I was just on time.
我剛好趕上。
I gave him a meal.He ate the food and drank the beer.
我給了他一頓飯。他把食物吃完，又喝了酒。