lump sum
US /ˈlʌmp sʌm/
UK /ˈlʌmp sʌm/

1.
一次性付款, 一次總付
a single payment made at one time, as opposed to a series of smaller payments made over time
:
•
She received a lump sum payment after selling her house.
她賣掉房子後收到了一筆一次性付款。
•
He chose to take his pension as a lump sum rather than monthly payments.
他選擇一次性領取養老金,而不是按月領取。