Idsa
abbr. intravenous digital subtraction angiography 静脉内数字减影血管造影术
🗣️ 情景例句
and he doesn't know anything
而他毫无所知
May I ask you how old you are?
我能问你多大了吗？
The police were called in, but they could not arrest anyone,
警察被召来了，但他们却不能逮捕任何人，