Squaric acid
[化] 方形酸; 二羟基环丁烯二酮
🧩 词语组成解析
🗣️ 情景例句
I feel as though I have been standing here for 50 days.
可我感觉像是在这里站了50天。
What time did you get to work yesterday morning?
你昨天早上什么时间上班？
It's a bit windy today, isn't it?
今天有点风，是不是？