offer letter中关于津贴

GuannaUID: 3910193

“The base stipend also includes a Research Assistantship or a Teaching Assistantship that you are expected to receive in the summer of 2021, contributing between $5,425 and $7,096 depending on the host department and the research laboratory that you will join.”这是刚刚收到的offerletter中关于TA和RA的部分，请问大家对于这个金额怎么看，这是一个月的还是一学期，还是一年的呀？要是一个月倒是挺可观的，但不是就有点儿少了~