Casec
[医] 钙西克(酪蛋白钙的商品名)
🗣️ 情景例句
I wanted to, but Jack Davis needed a photographer.
我真的想参加上课， 但Jack Davis要我拍照。
By the time we got there,the play had already begun.
等我们到那里，戏已经开始了。
Then for a period of several weeks we practise doing the play.
随后几个星期我们进行排练。