既然

jì rán zhī dào zuò cuò le jiù yīng dāng gǎn kuài gǎi zhèng

既然知道做错了，就应当赶快改正。

Since you know you've made a mistake, you should correct it immediately.

nǐ jì rán bù zhī dào nà jiù bù yào shuō

你既然不知道，那就不要说。

Since you don't know, don't talk about it.

jì rán nǐ tóng yì nà wǒ yě bù fǎn duì

既然你同意，那我也不反对。

Since you agree, I will not oppose it either.

nǐ jì rán biǎo le jué xīn jiù yīng gāi jiàn zhī yú xíng dòng

你既然表了决心，就应该见之于行动。

Now that you have expressed your determination, you should act.

jì rán nǐ bù gǎn xìng qù wǒ jiù bù gào su nǐ le

既然你不感兴趣，我就不告诉你了。

Since you're not interested, I won't tell you about it.

jì rán nǐ zhī dào cuò le jiù gāi xiàng tā dào gè qiàn

既然你知道错了，就该向他道个歉。

As you know you are in the wrong, you should apologize to him.

jì rán zhè ge fāng fǎ bù xíng wǒ men shì shì lìng yī gè

既然这个方法不行，我们试试另一个。

Since this method doesn't work, let's try another.

wǒ men xiǎng jì rán dào le zhè ge dì fang jiù gāi shùn biàn qù kàn kan tā men

我们想，既然到了这个地方，就该顺便去看看他们。

We thought that, since we were in the area, we'd stop by and see them.

jì rán tiān zhè me rè wǒ men qù yóu yǒng ba

既然天这么热，我们去游泳吧。

Since it is so hot, let's go swimming.