Kainosite
钙钇铈矿
🗣️ 情景例句
about your family background.
关于你的家庭背景的。
Are you going to America soon?
你就要去美国了吗？
It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.
据估计，在英国蜘蛛一年里所消灭昆虫的重量超过这个国家人口的总重量。