ScientistJul 12, 2017Online harassment on the rise – but no one can agree what it isBy Aylin Woodward With great power comes great responsibility. Social media and online platforms let us have conversations across...
YuzheJul 9, 2017Wind energy diagramThe wind is produced as a result of giant convection currents in the Earth's atmosphere, which are driven by heat energy from the sun....
YuzheJul 9, 2017Official IELTS Practice Material 2 - Speaking interview 3口语对话请点击音频 Please click the audio so as to listen to the interview #IELTSSpeaking
Cambridge + YuzheJul 9, 2017Common mistake: principal or principlePrincipal as an adjective means ‘most important’: The principal reason for the failure to take action was poor communication between...