ISBL信息系统基础语言
isv.是(be的第三人称单数一般现在时)
Is the problem that easy?渐开线形调制盘
Is bound to its corresponding绑定到其对应的
Is loaded with star cameos.刻有浮雕的宝石或贝壳。
Isn't that extraordinary?渐开线旋流分离器
Is that really necessary?恒定类
Is this your blue jaquet?招标
Is the baby still asleep?延伸渐开线
Is saline bath face fine?不变子集
Is that George's version?阴道内翻
Is your father a glazier?渐开线啮合