Aconic acid
[化] 阿康酸
🧩 词语组成解析
🗣️ 情景例句
My mom is available to baby-sit this weekend.
我妈妈在这个周末可以照顾小宝宝。
Happy birthday!
祝贺您生日快乐！
The Turners are going on a train. The conductor is coming round.
特纳一家人在火车上。列车员走过来。