英語翻譯：

already; as; as well as; since

例句：

1. 既然雨下得這么大，你與其離開倒不如待在這兒。
   Since it is raining hard, you may as well stay here as leave.
2. 既然她病得厲害，我們要馬上去請(qǐng)醫(yī)生。
   Since she is seriously ill, we have to send for a doctor at once.
3. 既然你堅(jiān)持，我就只好修改信用證。
   Since you insist, I must amend the letter of credit.
4. 一本好的學(xué)生字典應(yīng)該既提供詞語的含義，又舉出應(yīng)用這些詞語的例子。
   A good learner's dictionary should give both the meanings of the words and examples of the constructions in which they are used.
5. 海貍既能在陸上生活也能在水里生活。
   The beaver lives both on land and in water.
6. 既然他已經(jīng)悔罪了，我認(rèn)為他不會(huì)再那樣做了。
   Since he has been penitent, I don't think he will do that again.
7. 既然你無法回答這個(gè)問題，我們最好再問問別人。
   Since you can't answer the question, perhaps we'd better ask someone else.
8. 他既是個(gè)戰(zhàn)士，又是個(gè)詩人。
   He is both a soldier and a poet.