On time means 'according to a schedule or a deadline'. If I don't finish my work on time, my boss will be angry. My train is never on time. In time means 'not too late to be successful'. I missed my ...

所以Time For Kids是一份非常适合教学的儿童读物，与地理、科学、数学及艺术等学校课程都有紧密的联系。 Time For Kids（G1-G5）资源包含高清PDF学生用书，每本15个单元大约100页左右，同时还有教师用书送给大家，方便父母在家辅导。