[rù xué]
（開始進小學學習） start school
My sister started school at the age of six.
我妹妹6歲入學。
（開始進某學校學習） enter a school; enrol; entrance; begin attending a certain school
from entrance to graduation
從入學到畢業
The new students will enter school the day after tomorrow.
新生后天入學。