関連ワード:  can students use turnitin    can students use turnitin ai checker    can students use turnitin for free    can students use turnitin ai detection    can students use turnitin before submitting    can students use turnitin to check ai    can students use turnitin plagiarism checker    can students use turnitin to check their work    can students use turnitin without a class    is turnitin available for students