Preview Task 预习任务
Pre-unit Activities Preview Task 单元预习任务
task preview
任务预览
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In his comments to the Middle Class Task Force, which is chaired by Vice President Joe Biden, Mr.Obama offered a preview.
VOA: standard.2010.01.25
应用推荐
模块上移
模块下移
不移动