N-heptanal
[化] 正庚醛
🧩 词语组成解析
[化] 庚醛
🗣️ 情景例句
Winning isn't everything.
赢并不是一切。
That cat judged the distance before he leapt across the ditch.
猫在越过沟渠以前便判断好其距离了。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把这种仪器安装在距震源700多英里远的地方，