[00:00.00]Unit 2 第二单元
[00:06.32]Exercise 1 练习一
[00:09.67]Listen and repeat.
[00:12.33]glass plastic wood
[00:31.01]leather clay metal
[00:50.16]Exercise 3 练习三
[00:58.51]Listen and write the words in the correct column.
[01:02.96]riding weekend jump big jacke China kite eat
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