Microspread
噪声观测剖面
🗣️ 情景例句
Thanks for your information and for being so helpful.
谢谢你的帮助和提供的讯息。
By doing nothing we learn to do ill.
懒散学为非。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人们认为，在1850年到1910年之间，野牛的头数从6，000万头降到只有几百头了。