instalments
If you pay for something in instalments, you pay small sums of money at regular intervals over a period of time, rather than paying the whole amount at once.
Upper-bracket taxpayers who elected to pay their tax increase in instalments must pay the third instalment by 15 April.
选择分期支付增税的高额纳税人必须在4月15日之前交纳第3期税款。
An instalment of a story or plan is one of its parts that are published or carried out separately one after the other.
The next instalment of this four-part series deals with the impact of the war on the continent of Africa.
这部4集系列片的下一集将探讨战争对非洲大陆的影响。