installment

n. /ɪnˈstɑːl.mənt/ B2

分期付款（的一期）

One of several regular payments made until a debt is fully paid.

仙境例句

The King bought a new hat from the Hatter in installments, one penny every week.

国王分期从帽匠那里买了一顶新帽子，每周付一便士。