Bibliotic
a. 筆跡鑒定學的, 文件真偽鑒定學的
??? 情景例句
You did a great job.
做得好。
The sun sets.
太陽西沉了。
Between 1850 and 1910 the bison population is thought to have fallen from 60 million to just a few hundred.
人們認為，在1850年到1910年之間，野牛的頭數從6，000萬頭降到只有幾百頭了。