Translate the following sentences into English.
既然你已经做出承诺，就要信守诺言。
【正确答案】：
NOW THAT YOU'VE MADE A PROMISE, YOU SHOULD STAND BY IT.
【题目解析】：
既然Now that；承诺promise；信守诺言stand by。
Translate the following sentences into English.
既然你已经做出承诺，就要信守诺言。
Translate the following sentences into English.
既然你已经做出承诺，就要信守诺言。
NOW THAT YOU'VE MADE A PROMISE, YOU SHOULD STAND BY IT.
既然Now that；承诺promise；信守诺言stand by。