Scientific system
[计] 科学系统
🧩 词语组成解析
🗣️ 情景例句
That took place right after the First World War, didn't it?
它就发生在第一次世界大战之后，是吗？
Life is short and time is fleeting.
人生短暂，光阴易逝。
She does not know London very well, and she lost her way.
她对伦敦不很熟悉，因此迷了路。