Chloroformate
氯甲酸酯
🗣️ 情景例句
What material is this made from?
这是什么材料做的？
What's your nationality?Are you American?
你的国籍是什么?你是美国人吗？
the famous Calabrian macaroni-eating competition! Signor Fratelli, the present champion, has won it every year since 1991.
著名的克拉布利亚人吃通心粉大赛！目前的冠军弗拉特里先生，自1991年以来，年年获胜。