Copulae
copula的复数形
🗣️ 情景例句
We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货，我们就同意开信用证。
Do you know the exact date?
你知道确切日期吗？
Chaplin was born in London in 1889 and first acted when he was five years old.
卓别林1889年出生于伦敦，5岁时就开始演戏。