IP属地：河北
L4-U3-P2-1 Listening: Story of lang lang 1郎朗的故事 Lang Lang is one of the ...
L4-U2-P4-1 Listening: Al Capone 1艾尔·卡彭 Al Capone was one of the most fam...
L4-U2-P3-1 Listening: Alcatraz 1恶魔岛 Alcatraz is a small island in San Fr...
L4-U2-P2-1 Listening: Point of View 1 立场 This man is holding a piece of ...
大哭脸：“误删”，L4-U2-P1-1 Listening 改日补回。。。
L4-U1-P3-1 Listening : Harry's Trips 1哈利的旅行 Harry is an American busines...
L4-U1-P2-1 Listening : A Trip to Yosemite Park 1约塞米蒂公园之旅 Today, Christin...
L4-U1-P1-1 Listening : Visiting a Friend 1拜访朋友 Christina is on a two-wee...
L3-U3-P4-1 Listening : Leonardo da Vinci 1列奥纳多·达芬奇 Leonardo da Vinci is ...