Heptanedioic acid
[化] 庚二酸
🧩 词语组成解析
🗣️ 情景例句
My wife died four years ago.
我妻子四年前去世了。
A match will set fire to a large building.
星星之火，可以燎原。
They're in red and white.
他们穿着红白相间的衣服。