Siegfried's hypothesis
[医] 西格弗里德氏假说(精蛋白核假说)
🧩 词语组成解析
🗣️ 情景例句
We had a summer house on Fire Island.
我们在火岛有一所避暑别墅。
He's a policeman.
他是警察。
She gave her luggage to a porter and showed him her ticket.
她把行李交给搬运工并给他看了车票。