Ivan iv
un. 伊凡四世\\n
🧩 词语组成解析
n. 伊凡（男子名）
abbr. 输入阀；交互式视讯；自变量（Independent Variable）
🗣️ 情景例句
Sam, this is Susan. Sam
我是Susan。
What shall I send him for his birthday?
我要送他什么东西作为生日礼物？
A huge iceberg was suddenly spotted by a lookout.
突然，了望员发现一座冰山。