Sinuidal
正弦波; 正弦形
🗣️ 情景例句
How can I ever repay you for your kindness?
我该怎样才能报答你对我的好意呢？
I'll let you keep the book for the time being, but I'll want it back next week.
这本书我暂时借给你，吵过下星期我就要跟你要回来。
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。