per diem
per diem 每日；按日 用于计算津贴、报酬等。
PER DIEM
per diem
per diem, adj. Based on or calculated by the day (per diem interest). per diem (p[schwa]r dI-[schwa]m ordee-[schwa]m), adv. [Latin] By the day; for each day (reimbursed per diem). Cf. IN DIEM. per diem, n. 1. A monetary daily allowance, usu. to cover expenses. 2. A daily fee.