C-acid
[化] C酸; 2-萘胺-4,8-二磺酸
🧩 词语组成解析
🗣️ 情景例句
I have just one--playing golf. It's expensive, but it's a lot of fun.
我只有一种爱好，打高尔夫球。花费很高，但非常有趣。
I guess he's about 30.
我猜他大概30岁。
What's the time?
几点了？