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[00:00.00]Unit 2 第二单元
[00:05.85]Exercise 1 练习一
[00:09.40]Listen and repeat.
[00:13.09]silver
[00:17.66]gold
[00:42.71]pine tree
[00:50.16]pine seed
[00:58.15]pear
[00:00.00]Unit 2 第二单元
[00:05.85]Exercise 1 练习一
[00:09.40]Listen and repeat.
[00:13.09]silver
[00:17.66]gold
[00:42.71]pine tree
[00:50.16]pine seed
[00:58.15]pear