Natrometer
测钠计, 钠量计
🗣️ 情景例句
Do you still live there?
你还住在那儿吗？
Deliberate before you begin, then execute with vigour.
著手前要深思熟虑，执行要果断有力。
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。