Desmodur
聚氨基甲酸酯类粘结剂
🗣️ 情景例句
Mmm-hmm.
嗯。
Can I be sure of a profit if I invest?
我要是投资，肯定能获利吗？
A telescope would have to be as far away as the planet Jupiter to look for life in outer space, because the dust becomes thinner the further we travel towards the outer edges of our own solar system.
望远镜要放置在木星那样遥远的行星上才有可能在外层空间搜寻生命。因为我们越是接近太阳系的边缘，尘埃就越稀薄。