Dual language classrooms, by contrast, provide instruction across subjects to both English natives and English learners, in both English and a target language.
相比之下，双语课堂则用英语和目标语言为英语母语者和英语学习者提供跨学科的教学。
2
About 10 percent of students in the Portland, Oregon public schools are assigned by lottery to dual-language classrooms that offer instruction in Spanish, Japanese or Mandarin, alongside English.
And then the control strategy is formulated, the tracking control of instruction current is realized. On the basis of the work above the compensation current needed is produced by the dual-phase SVG.