Dithionite
连二亚硫酸盐
🗣️ 情景例句
Oh, Grandpa will be so pleased that you're wearing them.
噢 ，戴了它， 祖父一定会非常高兴。
He is now out of touch with his old friends.
他现在已经没有和他过去的朋友联系了。
There is a zoo, an art museum, a boating lake, a smaller lake for model boats and, in winter, an ice-skating area.
还有一个动物园、一座艺术博物馆，一个供人划船用的湖。另有一个比较小的湖，供人们玩模型船艇，冬天就成为滑冰场。