Aconic acid
[化] 阿康酸
🧩 词语组成解析
🗣️ 情景例句
There's no doubt about that.
此事确定无疑。
He who makes constant complaint gets little compassion.
经常诉苦抱怨，难以博得同情。
for it is then almost ready to undertake heavy work and can begin to earn its keep straight away.
这个年龄的象差不多已能干重活，可以很快挣回饲养它的开支。