1、The riyal has been fixed against the US dollar at about 3.64 to 1 since 1980.
亞爾匯率自1980來固定在：3.64亞爾：1美元。

2、The Yemeni rial or Yemeni riyal is the currency of Yemen.
也門里爾或也門第納爾(貨幣代碼yer)是也門的貨幣。

3、The Qatari riyal is the official currency of Qatar.
卡塔爾亞爾(貨幣代碼QAR)是卡塔爾的官方貨幣。

riyal翻譯