“表扬小学生”可以用“praise primary school students”或者“commend primary school pupils” 。
“praise”有“赞扬;称赞;表扬”的意思,“primary school students”是“小学生”。例如:The teacher praised the primary school students for their excellent performance.(老师表扬了这些小学生的出色表现。)
“commend”也有“表扬;称赞”的含义,“pupils”同样可以表示“小学生”。如:The principal commended the primary school pupils for their kindness.(校长表扬了这些小学生的善良。)
在具体使用时,可以根据语境和表达习惯选择合适的词汇。