Pneumomediastinogram
纵隔充气造影照片
🗣️ 情景例句
It's for kids.
这是给小孩看的。
English has become an international language.
英语已经成为一门国际语言。
a ticklish business which is achieved with the aid of two tame elephants roped to the captive on either side.
这是一件棘手的事，需要在它两侧拴上两头驯服的大象才能完成。