- 既然雨下得这么大，你与其离开倒不如待在这儿。
Since it is raining hard, you may as well stay here as leave.
- 既然她病得厉害，我们要马上去请医生。
Since she is seriously ill, we have to send for a doctor at once.
- 既然你坚持，我就只好修改信用证。
Since you insist, I must amend the letter of credit.
- 一本好的学生字典应该既提供词语的含义，又举出应用这些词语的例子。
A good learner's dictionary should give both the meanings of the words and examples of the constructions in which they are used.
- 海狸既能在陆上生活也能在水里生活。
The beaver lives both on land and in water.
- 既然他已经悔罪了，我认为他不会再那样做了。
Since he has been penitent, I don't think he will do that again.
- 既然你无法回答这个问题，我们最好再问问别人。
Since you can't answer the question, perhaps we'd better ask someone else.
- 他既是个战士，又是个诗人。
He is both a soldier and a poet.