“…MOOCs are characterized by openness, which breaks the constraint of time, and makes MOOCs easier for more and more learners to use (Chen, 2016a;Cormier & Siemens, 2010). MOOCs are also featured by learners' voluntary participation, i.e., learners can complete the courses independently or conduct peer assessment conveniently (Xu, 2015), and MOOC learners have their own preferred modes of communication based on their "level of English language proficiency, gender, level of education, and age, and did so in the context of a MOOC on creativity and innovation" (Zhang et al, 2016), which guarantees the effective utilization of such resources.…”