The app offers line-by-line translation for bilingual audiobooks, making language learning portable and accessible via a mobile/iOS device for learners of all ages.
State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China ...
School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Science and Key Laboratory of Organic Integrated Circuits, Ministry of Education, Tianjin University and ...
Do you have problems with Spanish verb tenses? Do you know how to conjugate them and when to use each one? Verbs are probably the biggest problems for English speakers learning Spanish.