ISNT原位切口移位法
isv.是(be的第三人称单数一般现在时)
Is she any better?
issuing administration售票局
Is that your bike?
Is everybody here?
Is this pure wool?
ischemic-reperfusion缺血再灌注
Is it far to walk?
Is this a request stop这个站是招手停车的汽车站吗?
Is it an elephant?
Is not it crowded?