The way to go in the beginning is dual language books (aff). These have the original language on the left side and a literal English translation on the right.
开始阶段应该采用双语书，原语言在左边，英语翻译在右边。
2
Others, such as PS 20 on the Lower East Side, have opted for dual-language programs, where half of the class is fluent in English and the other half is fluent in Mandarin.
而位于下东区的PS 20等其他学校则选择了双语课程，班上一半的学生英文流利，另一半则精通普通话。
3
One low-budget company released a dual-screen device in which one screen was e-ink, the other an Android tablet, though nobody that used it seemed to like either side very much.