回答

・I would like to pay in a single payment.

要用信用卡一次付清的話，可以用以下的英語表達。

I would like to pay with my credit card.
我想用我的信用卡付款。

■in a single payment
是一次性付清的意思

I would like to purchase this in a single payment.
我想一次性付清購買這樣商品。

I would like to pay in a single payment.
我想要一次性支付。

■by/in/on installments.
分期付款

I would like to purchase this by installments.
我想分期付款購買。

I would like to purchase this on EMI.
我想透過等額每月分期付款購買。
EMI - Equated monthly installments　等額每月分期付款

有幫助｜0