From the perspective of cross-cultural pragmatics , the question-answer process in TEF classroom often incurs a series of “ face-threatening acts ” .
从跨文化语用学角度来看,EFL课堂问答过程中往往发生一系列的面子威胁行为。
The application of TEF model to the evaluation research of the sustainable tourism development can objectively and accurately reflects the wastage of tourist activities to the natural resource .
In this paper , a method for practical stability domain estimate of power system utilizing topological energy function ( TEF ) based on a structure preserving model ( SPM ) is presented .