Polysulfuration
聚硫化作用
🗣️ 情景例句
At this time tomorrow morning,Grandpa will be sitting in the kitchen with us.
明早这时候爷爷就和我们一起坐在厨房啦。
Will you iron out the wrinkles in this skirt?
可以帮我把这件裙子烫平吗？
One of the most famous monuments in the world, the Statue of Liberty, was presented to the United States of America in the nineteenth century by the people of France.
世界上最著名的纪念碑之一的自由女神雕像是在19世纪时由法国人民赠送给美国的。