单词：garsshe
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单词：garsshe 相关文章
Acid 酸 Why does the lemon taste sour? 为什么柠檬的味道很酸？ It is because of the acid in a lemon. 因为柠檬里有酸。 Then what is acid? 那么什么是酸？ All substances with a sour taste are kinds of acid. 所有带酸味的物质
发表于:2019-01-10 / 阅读(54) / 评论(0)
与美国小学生一起学英文第12册
与美国小学生一起学英文第12册
RACHEL MARTIN, HOST: Even with all the VA clinics and hospitals, that $180 billion budget for the U.S. Department of Veterans Affairs, even with all those resources, the day-in-and-day-out care of disabled veterans often falls to their own family mem
发表于:2019-02-13 / 阅读(59) / 评论(0)
2017年NPR美国国家公共电台4月
2017年NPR美国国家公共电台4月