Creg
[医][=cross-reactive group]交叉反应组
🗣️ 情景例句
They're the ones.
找他们没错。
One party is entitled to cancel the contract if the other side cannot execute it.
如果一方不履行合同，另一方有权取消合同。
No, they aren't. They're their books.
不，不是我的。这些是他们的书。