初中英语深圳版第一册听力UNIT12

[00:00.00] Unit¹ 12
[00:03.40]part 1.
[00:30.46]part 2.
[00:51.41]part 3.
[01:20.59]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。