四级Once you are done demonstrating whatever concept was in the textbook, you throw away the pipe cleaners, the straws, the cardboard tubes.
一旦你演示完课本中的任何概念,你就扔掉了管道清洁器、吸管和硬纸板管。
2019年6月四级真题(第三套)阅读 Section B
四级Once you are done demonstrating whatever concept was in the textbook, you throw away the pipe cleaners, the cardboard tubes.
一旦你演示完课本上的任何概念,你就扔掉了管道清洁器,硬纸板管。
2019年6月大学英语四级真题(第3套)
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