Created by TIFFANY_TEOH science 齿轮 Age 10 level: 4 Chinese Author's Instructions 齿轮是一种简单机械，由边缘有齿状的轮所组成 My Google Classroom Courses × 0 classes selected (0 students total) Quick Access Select all classes (0 classes) All Classes Loading courses... Cancel Share Share to selected Course __COURSE_NAME__ __STUDENT_NAME__ (__STUDENT_EMAIL__) 齿轮 Download Active — user can report Report this worksheet Worksheet Validation Check my answers Emails my answers to my teacher Full name Group/level School subject Teacher's email or key code Close Submit Your answers have been sent to your teacher. Good luck! OK We encountered an error submitting your answers. Please try again. OK Advertisement | Go Ad Free Created by TIFFANY_TEOH science 齿轮 Age 10 level: 4 Chinese Author's Instructions 齿轮是一种简单机械，由边缘有齿状的轮所组成
