Iv
abbr. 输入阀；交互式视讯；自变量（Independent Variable）
🗣️ 情景例句
This place is a mess.
这地方真够乱的。
His presence in the room was not noticed.
没有人注意到他在房间里。
What are the selling points of your product?
你们的销售重点是什么呢？