Aortas
pl. 主动脉
🗣️ 情景例句
Western countries have evry strict visa requirements.
在西方国家有严格的签证要求。
Who is the auther of this play?
谁是这戏剧的作者？
There is a new type of machine which can produce colour copies.
有一种新型的机器能够制作出彩色复印件。