初中英语（深圳&香港文达版）第二册听力UNIT13-14

[00:00.00] Unit¹ 13
[00:03.21]Part 1
[00:32.37]Part 2
[00:51.72]Part 3
[01:31.69]Part 4
[01:55.25]Unit 14
[01:58.49]Part 1
[02:27.44]Part 2
[02:49.87]Part 3
[03:37.42]Part 4

1 unit   

n.单位，单元，部件，元件，装置

参考例句：

• This unit is very hard.这个单元很难。
• This textbook has twenty units.这本课本有二十单元。