v.使负担过重；使装载过多；使过于劳累
The education system rather than the teachers is to answer for overburden on the students . 使学生负担过重的是教育体系而不是老师。
Language teachers should be aware of the priority in vocabulary instruction and had better not overburden students' memory. 首先词汇教学的内容要重点突出，循序渐进，不能使短时记忆超负荷。
