principal instalments的用法和樣例：
例句
- Under normal circumstances, the banks will offer the applicants a six-month grace period for repayment of the loan principal.
銀行通常會(huì )給予申請人六個(gè)月償還貸款本金的寬限期。 - Whatever unspent household income on each and every day could be utilised for reducing the loan principal and paying interest.
每日帳戶(hù)內未動(dòng)用的家庭收入都可以用作減低貸款本金及支付的利息。
