Levulinate
乙酰丙酸
🗣️ 情景例句
went to the Thanksgiving Day parade?
去参加感恩节游行吗
Come to see me tomorrow if it is convenient to you.
你如果方便的话，明天来看我。
Car alarms constantly scream at us in the street and are a source of profound irritation.
在街上，汽车的防盗警报不断对我们吼叫，这是人们极度烦燥的一个原因，