Cetylene
鲸蜡烯
🗣️ 情景例句
Our teacher drills us in English.
我们老师让我们反复操练英语。
What time did you use to get up last year?
你去年时常什么时间起床？
What can I eat? asked Mrs Brown.
“吃什么才行呢？”布朗夫人问。