首先

shǒu xiān

first (of all), in the first place

首先是地图

shǒu xiān shì dì tú

The first is a map.

首先，你是医生吗？

shǒu xiān， nǐ shì yī shēng ma？

First, are you a doctor?

说到美国首先想到的是什么？

shuō dào Měi guó shǒu xiān xiǎng dào de shì shén me？

What's the first thing that comes to mind when you think of the United States?

请坐先生

qǐng zuò xiān sheng

Please sit sir

这首歌很流行。

zhè shǒu gē hěn liú xíng。

This song is very popular.

不客气，先生

bù kè qi， xiān sheng

Your welcome, sir.

谢谢你，先生

xiè xie nǐ， Xiān sheng

Thankyou sir

妈妈轻声唱一首歌。

mā ma qīng shēng chàng yī shǒu gē。

Mom sang a song softly.

我以前听过这首歌

wǒ yǐ qián tīng guo zhè shǒu gē

I've heard that song before.

我早就会唱这首歌

wǒ zǎo jiù huì chàng zhè shǒu gē

I long time ago would have sung this song