Unipotency
[医] 单能性
🗣️ 情景例句
autograph copies for the guests at the opening?
在展览开幕时为客人在书上亲笔签名呢
Soorow is at parting if at meeting there be laughter.
离别多愁恨，相见尽笑声。
Let me explain why I was late.
让我解释迟到的理由。