ISNT原位切口移位法
isv.是(be的第三人称单数一般现在时)
Ischemic pretreatment缺血预处
Is this your son?
Is John Li there?
Is everything OK?
Ischnopsyllus indicus印度幅蚤
Is they all here?
Is he a young lad?
Is this your coat?
Is it hand-made?
Ischiococcygeus muscle坐骨尾骨肌