Serta
sertum的复数
🗣️ 情景例句
You must be mistaken.
你一定搞错了。
I meet the boy whose aunt is a clerk.
我遇到那个男孩的姑妈是店员。
A cat's ability to survive falls is based on fact.
猫在跌落时能够大难不死是有事实作为依据的。