Cchd
[医][=cyanotic congenital heart disease]紫绀型先天性心脏病
🗣️ 情景例句
I keep thinking about the dog -- about Gemma,
我一直在想那只狗 Gemma，
My uncle was a pilot with the airlines.He just retired.
我的叔叔是航空公司的一名飞行员，他刚退休了。
I know that one of the towers is on the top of a hill, but the rest of the buildings are easy to get to.
我知道其中有个塔在山上，但其余的建筑物都并不难上。