Aliphatics
脂(肪)族化合物
🗣️ 情景例句
Are you a Republican, or a Democrat?
你是共和党人还是民主党人？
Thank you for inviting us; we had a wonderful time.
谢谢您的邀请，使我们过得很快乐。
What invariably happens is that a great number of things choose to go wrong at precisely the same moment.
情况经常是这样的，许许多多的事情都偏偏赶在同一时刻出问题，