Nsls
abbr. National Science Library System 国家科学图书馆系统; national synchrotron light source 国家同步加速器光源
🗣️ 情景例句
He missed a phone call.
他没接到一通电话。
An ass endures his burden,but not more than his burden.
驴子能负重，过重也难负。
I am, Miss Zhao, said Wei Hua. Today is Saturday, September 19th.
“是我，赵小姐，”魏华说，“今天是9月19日，星期六。