Students also benefit from learning something about coding before they get to college, where introductory computer-science classes are packed to the brim, which can drive the less-experienced or -determined students away.

1.brim v.充满 n.边缘 

在上大学之前，学生们同样可以通过学习编程而获益，大学里计算机科学的入门课程都排得满满当当，这会赶走那些经验不足或意志不够坚定的学生。