Poset
n. 偏序集
🗣️ 情景例句
Fortunately, they returned safely.
说来幸运，他们平安回家了。
He sees things. He has gone crazy.
他有幻觉。他疯了。
An advertisement which begins with the magic word FREE can rarely go wrong.
凡是用“免费”这个神奇的词开头的广告很少会失败的。